21883668520495 has 16 divisors (see below), whose sum is σ = 26904932826912. Its totient is φ = 17077375779840.

The previous prime is 21883668520453. The next prime is 21883668520589. The reversal of 21883668520495 is 59402586638812.

It is not a de Polignac number, because 21883668520495 - 2¹⁷ = 21883668389423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21883668520495.

It is a congruent number.

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, 6630657 + ... + 9366586.

It is an arithmetic number, because the mean of its divisors is an integer number (1681558301682).

Almost surely, 2^{21883668520495} is an apocalyptic number.

21883668520495 is a deficient number, since it is larger than the sum of its proper divisors (5021264306417).

21883668520495 is a wasteful number, since it uses less digits than its factorization.

21883668520495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16003962.

The product of its (nonzero) digits is 199065600, while the sum is 67.

The spelling of 21883668520495 in words is "twenty-one trillion, eight hundred eighty-three billion, six hundred sixty-eight million, five hundred twenty thousand, four hundred ninety-five".