20354350556536 has 16 divisors (see below), whose sum is σ = 38790053315640. Its totient is φ = 10010336339040.

The previous prime is 20354350556483. The next prime is 20354350556543. The reversal of 20354350556536 is 63565505345302.

It is a congruent number.

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, 20854866886 + ... + 20854867861.

Almost surely, 2^{20354350556536} is an apocalyptic number.

It is an amenable number.

20354350556536 is a deficient number, since it is larger than the sum of its proper divisors (18435702759104).

20354350556536 is a wasteful number, since it uses less digits than its factorization.

20354350556536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41709734814 (or 41709734810 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 52.

The spelling of 20354350556536 in words is "twenty trillion, three hundred fifty-four billion, three hundred fifty million, five hundred fifty-six thousand, five hundred thirty-six".