15040776638216 has 64 divisors (see below), whose sum is σ = 33927526425600. Its totient is φ = 6106608228672.

The previous prime is 15040776638189. The next prime is 15040776638231. The reversal of 15040776638216 is 61283667704051.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41364995 + ... + 41727021.

It is an arithmetic number, because the mean of its divisors is an integer number (530117600400).

Almost surely, 2^{15040776638216} is an apocalyptic number.

It is an amenable number.

15040776638216 is an abundant number, since it is smaller than the sum of its proper divisors (18886749787384).

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

15040776638216 is a wasteful number, since it uses less digits than its factorization.

15040776638216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401106 (or 401102 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 15040776638216 in words is "fifteen trillion, forty billion, seven hundred seventy-six million, six hundred thirty-eight thousand, two hundred sixteen".