20402304000636 has 24 divisors (see below), whose sum is σ = 47630819867904. Its totient is φ = 6797133162160.

The previous prime is 20402304000629. The next prime is 20402304000647. The reversal of 20402304000636 is 63600040320402.

It is a happy number.

It is a congruent number.

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, 454331370 + ... + 454376273.

It is an arithmetic number, because the mean of its divisors is an integer number (1984617494496).

Almost surely, 2^{20402304000636} is an apocalyptic number.

It is an amenable number.

20402304000636 is an abundant number, since it is smaller than the sum of its proper divisors (27228515867268).

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

20402304000636 is a wasteful number, since it uses less digits than its factorization.

20402304000636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908709521 (or 908709519 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The spelling of 20402304000636 in words is "twenty trillion, four hundred two billion, three hundred four million, six hundred thirty-six", and thus it is an aban number.