20037020353668 has 72 divisors (see below), whose sum is σ = 50775164895000. Its totient is φ = 6662392943616.

The previous prime is 20037020353619. The next prime is 20037020353699. The reversal of 20037020353668 is 86635302073002.

20037020353668 is a `hidden beast` number, since 2 + 0 + 0 + 37 + 0 + 20 + 3 + 536 + 68 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 624254849604 + 19412765504064 = 790098^2 + 4405992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89503618 + ... + 89727206.

Almost surely, 2^{20037020353668} is an apocalyptic number.

It is an amenable number.

20037020353668 is an abundant number, since it is smaller than the sum of its proper divisors (30738144541332).

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

20037020353668 is a wasteful number, since it uses less digits than its factorization.

20037020353668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229781 (or 229776 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 20037020353668 in words is "twenty trillion, thirty-seven billion, twenty million, three hundred fifty-three thousand, six hundred sixty-eight".