185020185344 has 72 divisors (see below), whose sum is σ = 378237090000. Its totient is φ = 90279641088.

The previous prime is 185020185307. The next prime is 185020185353. The reversal of 185020185344 is 443581020581.

It is a super-2 number, since 2×185020185344² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13742264 + ... + 13755720.

Almost surely, 2^185020185344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 185020185344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189118545000).

185020185344 is an abundant number, since it is smaller than the sum of its proper divisors (193216904656).

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

185020185344 is a wasteful number, since it uses less digits than its factorization.

185020185344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14765 (or 14751 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 41.

The spelling of 185020185344 in words is "one hundred eighty-five billion, twenty million, one hundred eighty-five thousand, three hundred forty-four".