63716222013621 has 32 divisors (see below), whose sum is σ = 86455397928960. Its totient is φ = 41730778926144.

The previous prime is 63716222013617. The next prime is 63716222013629. The reversal of 63716222013621 is 12631022261736.

It is not a de Polignac number, because 63716222013621 - 2² = 63716222013617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63716222013629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174683191 + ... + 175047563.

It is an arithmetic number, because the mean of its divisors is an integer number (2701731185280).

Almost surely, 2^{63716222013621} is an apocalyptic number.

It is an amenable number.

63716222013621 is a deficient number, since it is larger than the sum of its proper divisors (22739175915339).

63716222013621 is a wasteful number, since it uses less digits than its factorization.

63716222013621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366785.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 63716222013621 in words is "sixty-three trillion, seven hundred sixteen billion, two hundred twenty-two million, thirteen thousand, six hundred twenty-one".