20537316755 has 32 divisors (see below), whose sum is σ = 25619630400. Its totient is φ = 15791431680.

The previous prime is 20537316749. The next prime is 20537316853. The reversal of 20537316755 is 55761373502.

It is not a de Polignac number, because 20537316755 - 2⁶ = 20537316691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18823760 + ... + 18824850.

It is an arithmetic number, because the mean of its divisors is an integer number (800613450).

Almost surely, 2^20537316755 is an apocalyptic number.

20537316755 is a deficient number, since it is larger than the sum of its proper divisors (5082313645).

20537316755 is a wasteful number, since it uses less digits than its factorization.

20537316755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279.

The product of its (nonzero) digits is 661500, while the sum is 44.

The spelling of 20537316755 in words is "twenty billion, five hundred thirty-seven million, three hundred sixteen thousand, seven hundred fifty-five".