54515515622961 has 16 divisors (see below), whose sum is σ = 76316110401600. Its totient is φ = 34566708821568.

The previous prime is 54515515622957. The next prime is 54515515622969. The reversal of 54515515622961 is 16922651551545.

It is not a de Polignac number, because 54515515622961 - 2² = 54515515622957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54515515622969) 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, 4676226426 + ... + 4676238083.

It is an arithmetic number, because the mean of its divisors is an integer number (4769756900100).

Almost surely, 2^{54515515622961} is an apocalyptic number.

It is an amenable number.

54515515622961 is a deficient number, since it is larger than the sum of its proper divisors (21800594778639).

54515515622961 is a wasteful number, since it uses less digits than its factorization.

54515515622961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352464608.

The product of its digits is 16200000, while the sum is 57.

The spelling of 54515515622961 in words is "fifty-four trillion, five hundred fifteen billion, five hundred fifteen million, six hundred twenty-two thousand, nine hundred sixty-one".