21602350104572 has 24 divisors (see below), whose sum is σ = 37905990377472. Its totient is φ = 10772071862000.

The previous prime is 21602350104557. The next prime is 21602350104581. The reversal of 21602350104572 is 27540105320612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17908697 + ... + 19076847.

It is an arithmetic number, because the mean of its divisors is an integer number (1579416265728).

Almost surely, 2^{21602350104572} is an apocalyptic number.

It is an amenable number.

21602350104572 is a deficient number, since it is larger than the sum of its proper divisors (16303640272900).

21602350104572 is a wasteful number, since it uses less digits than its factorization.

21602350104572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180609 (or 1180607 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 21602350104572 in words is "twenty-one trillion, six hundred two billion, three hundred fifty million, one hundred four thousand, five hundred seventy-two".