20413515163650 has 192 divisors, whose sum is σ = 62320815783936. Its totient is φ = 4319108640000.

The previous prime is 20413515163649. The next prime is 20413515163687. The reversal of 20413515163650 is 5636151531402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12884901 + ... + 14382200.

It is an arithmetic number, because the mean of its divisors is an integer number (324587582208).

Almost surely, 2^{20413515163650} is an apocalyptic number.

20413515163650 is an abundant number, since it is smaller than the sum of its proper divisors (41907300620286).

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

20413515163650 is a wasteful number, since it uses less digits than its factorization.

20413515163650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27267177 (or 27267172 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 20413515163650 in words is "twenty trillion, four hundred thirteen billion, five hundred fifteen million, one hundred sixty-three thousand, six hundred fifty".