1115864160660 has 72 divisors (see below), whose sum is σ = 3431154952680. Its totient is φ = 293487556608.

The previous prime is 1115864160623. The next prime is 1115864160661. The reversal of 1115864160660 is 660614685111.

1115864160660 is a `hidden beast` number, since 1 + 1 + 1 + 586 + 4 + 1 + 6 + 0 + 6 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 297081682704 + 818782477956 = 545052^2 + 904866^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115864160661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42447445 + ... + 42473724.

Almost surely, 2^{1115864160660} is an apocalyptic number.

1115864160660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115864160660 is an abundant number, since it is smaller than the sum of its proper divisors (2315290792020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115864160660 is a wasteful number, since it uses less digits than its factorization.

1115864160660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84921257 (or 84921252 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 1115864160660 in words is "one trillion, one hundred fifteen billion, eight hundred sixty-four million, one hundred sixty thousand, six hundred sixty".