185557374145 has 16 divisors (see below), whose sum is σ = 261596970432. Its totient is φ = 124569984960.

The previous prime is 185557374127. The next prime is 185557374161. The reversal of 185557374145 is 541473755581.

It is not a de Polignac number, because 185557374145 - 2⁵ = 185557374113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129759687 + ... + 129761116.

It is an arithmetic number, because the mean of its divisors is an integer number (16349810652).

Almost surely, 2^185557374145 is an apocalyptic number.

It is an amenable number.

185557374145 is a deficient number, since it is larger than the sum of its proper divisors (76039596287).

185557374145 is a wasteful number, since it uses less digits than its factorization.

185557374145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259520832.

The product of its digits is 11760000, while the sum is 55.

The spelling of 185557374145 in words is "one hundred eighty-five billion, five hundred fifty-seven million, three hundred seventy-four thousand, one hundred forty-five".