21601375524346 has 8 divisors (see below), whose sum is σ = 32596087618080. Its totient is φ = 10736012984988.

The previous prime is 21601375524299. The next prime is 21601375524359. The reversal of 21601375524346 is 64342557310612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21601375524346.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32337388176 + ... + 32337388843.

It is an arithmetic number, because the mean of its divisors is an integer number (4074510952260).

Almost surely, 2^{21601375524346} is an apocalyptic number.

21601375524346 is a deficient number, since it is larger than the sum of its proper divisors (10994712093734).

21601375524346 is a wasteful number, since it uses less digits than its factorization.

21601375524346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64674777188.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 21601375524346 in words is "twenty-one trillion, six hundred one billion, three hundred seventy-five million, five hundred twenty-four thousand, three hundred forty-six".