21110632314156 has 72 divisors (see below), whose sum is σ = 66530477604864. Its totient is φ = 5483281119840.

The previous prime is 21110632314131. The next prime is 21110632314179. The reversal of 21110632314156 is 65141323601112.

21110632314156 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 0 + 6 + 3 + 231 + 415 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 21110632314156.

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, 3807831340 + ... + 3807836883.

Almost surely, 2^{21110632314156} is an apocalyptic number.

It is an amenable number.

21110632314156 is an abundant number, since it is smaller than the sum of its proper divisors (45419845290708).

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

21110632314156 is a wasteful number, since it uses less digits than its factorization.

21110632314156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615668251 (or 7615668246 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 21110632314156 its reverse (65141323601112), we get a palindrome (86251955915268).

The spelling of 21110632314156 in words is "twenty-one trillion, one hundred ten billion, six hundred thirty-two million, three hundred fourteen thousand, one hundred fifty-six".