113160781845 has 12 divisors (see below), whose sum is σ = 196145355276. Its totient is φ = 60352416960.

The previous prime is 113160781841. The next prime is 113160781849. The reversal of 113160781845 is 548187061311.

113160781845 is a `hidden beast` number, since 1 + 1 + 31 + 607 + 8 + 1 + 8 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (113160781841) and next prime (113160781849).

It can be written as a sum of positive squares in 2 ways, for example, as 19930098276 + 93230683569 = 141174^2 + 305337^2 .

It is not a de Polignac number, because 113160781845 - 2² = 113160781841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2514684041 = 113160781845 / (1 + 1 + 3 + 1 + 6 + 0 + 7 + 8 + 1 + 8 + 4 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113160781845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113160781841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1257341976 + ... + 1257342065.

It is an arithmetic number, because the mean of its divisors is an integer number (16345446273).

Almost surely, 2^113160781845 is an apocalyptic number.

113160781845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113160781845 is a deficient number, since it is larger than the sum of its proper divisors (82984573431).

113160781845 is a wasteful number, since it uses less digits than its factorization.

113160781845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514684052 (or 2514684049 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 113160781845 in words is "one hundred thirteen billion, one hundred sixty million, seven hundred eighty-one thousand, eight hundred forty-five".