20354736277164 has 24 divisors (see below), whose sum is σ = 47512533128368. Its totient is φ = 6782319452160.

The previous prime is 20354736277159. The next prime is 20354736277171. The reversal of 20354736277164 is 46177263745302.

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, 324047317 + ... + 324110124.

Almost surely, 2^{20354736277164} is an apocalyptic number.

It is an amenable number.

20354736277164 is an abundant number, since it is smaller than the sum of its proper divisors (27157796851204).

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

20354736277164 is a wasteful number, since it uses less digits than its factorization.

20354736277164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648160065 (or 648160063 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 57.

The spelling of 20354736277164 in words is "twenty trillion, three hundred fifty-four billion, seven hundred thirty-six million, two hundred seventy-seven thousand, one hundred sixty-four".