180023735460881 has 16 divisors (see below), whose sum is σ = 195377862734208. Its totient is φ = 164885112537600.

The previous prime is 180023735460857. The next prime is 180023735460889. The reversal of 180023735460881 is 188064537320081.

It is a de Polignac number, because none of the positive numbers 2^k-180023735460881 is a prime.

It is a super-2 number, since 2×180023735460881² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180023735460889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5611316 + ... + 19787226.

It is an arithmetic number, because the mean of its divisors is an integer number (12211116420888).

Almost surely, 2^{180023735460881} is an apocalyptic number.

It is an amenable number.

180023735460881 is a deficient number, since it is larger than the sum of its proper divisors (15354127273327).

180023735460881 is a wasteful number, since it uses less digits than its factorization.

180023735460881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14183512.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 180023735460881 in words is "one hundred eighty trillion, twenty-three billion, seven hundred thirty-five million, four hundred sixty thousand, eight hundred eighty-one".