20937237356 has 24 divisors (see below), whose sum is σ = 41954877216. Its totient is φ = 8955872640.

The previous prime is 20937237337. The next prime is 20937237361. The reversal of 20937237356 is 65373273902.

It is a self number, because there is not a number n which added to its sum of digits gives 20937237356.

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, 703031 + ... + 732206.

It is an arithmetic number, because the mean of its divisors is an integer number (1748119884).

Almost surely, 2^20937237356 is an apocalyptic number.

It is an amenable number.

20937237356 is an abundant number, since it is smaller than the sum of its proper divisors (21017639860).

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

20937237356 is a wasteful number, since it uses less digits than its factorization.

20937237356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435769 (or 1435767 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 47.

The spelling of 20937237356 in words is "twenty billion, nine hundred thirty-seven million, two hundred thirty-seven thousand, three hundred fifty-six".