180851403081 has 16 divisors (see below), whose sum is σ = 253842195200. Its totient is φ = 114214889808.

The previous prime is 180851403023. The next prime is 180851403133. The reversal of 180851403081 is 180304158081.

It is not a de Polignac number, because 180851403081 - 2¹⁸ = 180851140937 is a prime.

It is a super-2 number, since 2×180851403081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180851403001) 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, 927150 + ... + 1105128.

It is an arithmetic number, because the mean of its divisors is an integer number (15865137200).

Almost surely, 2^180851403081 is an apocalyptic number.

It is an amenable number.

180851403081 is a deficient number, since it is larger than the sum of its proper divisors (72990792119).

180851403081 is a wasteful number, since it uses less digits than its factorization.

180851403081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195828.

The product of its (nonzero) digits is 30720, while the sum is 39.

The spelling of 180851403081 in words is "one hundred eighty billion, eight hundred fifty-one million, four hundred three thousand, eighty-one".