21620596362 has 64 divisors (see below), whose sum is σ = 46335058560. Its totient is φ = 6701654016.

The previous prime is 21620596339. The next prime is 21620596399. The reversal of 21620596362 is 26369502612.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7310188 + ... + 7313144.

It is an arithmetic number, because the mean of its divisors is an integer number (723985290).

Almost surely, 2^21620596362 is an apocalyptic number.

21620596362 is an abundant number, since it is smaller than the sum of its proper divisors (24714462198).

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

21620596362 is a wasteful number, since it uses less digits than its factorization.

21620596362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 21620596362 in words is "twenty-one billion, six hundred twenty million, five hundred ninety-six thousand, three hundred sixty-two".