21514413514556 has 12 divisors (see below), whose sum is σ = 37666361782392. Its totient is φ = 10752595862448.

The previous prime is 21514413514511. The next prime is 21514413514571. The reversal of 21514413514556 is 65541531441512.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 21514413514556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152713210 + ... + 1152731873.

It is an arithmetic number, because the mean of its divisors is an integer number (3138863481866).

Almost surely, 2^{21514413514556} is an apocalyptic number.

It is an amenable number.

21514413514556 is a deficient number, since it is larger than the sum of its proper divisors (16151948267836).

21514413514556 is a wasteful number, since it uses less digits than its factorization.

21514413514556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305447420 (or 2305447418 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 47.

The spelling of 21514413514556 in words is "twenty-one trillion, five hundred fourteen billion, four hundred thirteen million, five hundred fourteen thousand, five hundred fifty-six".