1145500018785 has 12 divisors (see below), whose sum is σ = 1985533365972. Its totient is φ = 610933343328.

The previous prime is 1145500018783. The next prime is 1145500018811. The reversal of 1145500018785 is 5878100055411.

1145500018785 is a `hidden beast` number, since 1 + 1 + 4 + 550 + 0 + 0 + 18 + 7 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 523679453649 + 621820565136 = 723657^2 + 788556^2 .

It is not a de Polignac number, because 1145500018785 - 2¹ = 1145500018783 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: 25455555973 = 1145500018785 / (1 + 1 + 4 + 5 + 5 + 0 + 0 + 0 + 1 + 8 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1145500018785.

It is not an unprimeable number, because it can be changed into a prime (1145500018781) 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, 12727777942 + ... + 12727778031.

It is an arithmetic number, because the mean of its divisors is an integer number (165461113831).

Almost surely, 2^{1145500018785} is an apocalyptic number.

1145500018785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145500018785 is a deficient number, since it is larger than the sum of its proper divisors (840033347187).

1145500018785 is a wasteful number, since it uses less digits than its factorization.

1145500018785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25455555984 (or 25455555981 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 45.

The spelling of 1145500018785 in words is "one trillion, one hundred forty-five billion, five hundred million, eighteen thousand, seven hundred eighty-five".