180281668896 has 144 divisors (see below), whose sum is σ = 607616178624. Its totient is φ = 51509032704.

The previous prime is 180281668873. The next prime is 180281668909. The reversal of 180281668896 is 698866182081.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1601595 + ... + 1710458.

It is an arithmetic number, because the mean of its divisors is an integer number (4219556796).

Almost surely, 2^180281668896 is an apocalyptic number.

180281668896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

180281668896 is an abundant number, since it is smaller than the sum of its proper divisors (427334509728).

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

180281668896 is an equidigital number, since it uses as much as digits as its factorization.

180281668896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312085 (or 3312065 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 63.

The spelling of 180281668896 in words is "one hundred eighty billion, two hundred eighty-one million, six hundred sixty-eight thousand, eight hundred ninety-six".