20702755663684 has 12 divisors (see below), whose sum is σ = 36233922260844. Its totient is φ = 10350206446304.

The previous prime is 20702755663661. The next prime is 20702755663721. The reversal of 20702755663684 is 48636655720702.

It can be written as a sum of positive squares in 2 ways, for example, as 11680481899584 + 9022273764100 = 3417672^2 + 3003710^2 .

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, 292806619 + ... + 292877314.

It is an arithmetic number, because the mean of its divisors is an integer number (3019493521737).

Almost surely, 2^{20702755663684} is an apocalyptic number.

It is an amenable number.

20702755663684 is a deficient number, since it is larger than the sum of its proper divisors (15531166597160).

20702755663684 is a wasteful number, since it uses less digits than its factorization.

20702755663684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585692774 (or 585692772 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 61.

The spelling of 20702755663684 in words is "twenty trillion, seven hundred two billion, seven hundred fifty-five million, six hundred sixty-three thousand, six hundred eighty-four".