180977021256944 has 40 divisors (see below), whose sum is σ = 391415418083712. Its totient is φ = 80349206051520.

The previous prime is 180977021256919. The next prime is 180977021256953. The reversal of 180977021256944 is 449652120779081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11956719524 + ... + 11956734659.

Almost surely, 2^{180977021256944} is an apocalyptic number.

It is an amenable number.

180977021256944 is an abundant number, since it is smaller than the sum of its proper divisors (210438396826768).

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

180977021256944 is a wasteful number, since it uses less digits than its factorization.

180977021256944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23913454245 (or 23913454239 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 180977021256944 in words is "one hundred eighty trillion, nine hundred seventy-seven billion, twenty-one million, two hundred fifty-six thousand, nine hundred forty-four".