185157365945 has 16 divisors (see below), whose sum is σ = 222567925008. Its totient is φ = 147873392640.

The previous prime is 185157365933. The next prime is 185157365969. The reversal of 185157365945 is 549563751581.

185157365945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5886418729 + 179270947216 = 76723^2 + 423404^2 .

It is not a de Polignac number, because 185157365945 - 2¹⁰ = 185157364921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7230965 + ... + 7256525.

It is an arithmetic number, because the mean of its divisors is an integer number (13910495313).

Almost surely, 2^185157365945 is an apocalyptic number.

It is an amenable number.

185157365945 is a deficient number, since it is larger than the sum of its proper divisors (37410559063).

185157365945 is a wasteful number, since it uses less digits than its factorization.

185157365945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27980.

The product of its digits is 22680000, while the sum is 59.

The spelling of 185157365945 in words is "one hundred eighty-five billion, one hundred fifty-seven million, three hundred sixty-five thousand, nine hundred forty-five".