17716420056 has 32 divisors (see below), whose sum is σ = 44294768640. Its totient is φ = 5904977568.

The previous prime is 17716420049. The next prime is 17716420061. The reversal of 17716420056 is 65002461771.

It is a junction number, because it is equal to n+sod(n) for n = 17716419996 and 17716420023.

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, 363145 + ... + 409031.

It is an arithmetic number, because the mean of its divisors is an integer number (1384211520).

Almost surely, 2^17716420056 is an apocalyptic number.

It is an amenable number.

17716420056 is an abundant number, since it is smaller than the sum of its proper divisors (26578348584).

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

17716420056 is a wasteful number, since it uses less digits than its factorization.

17716420056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61983 (or 61979 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 17716420056 in words is "seventeen billion, seven hundred sixteen million, four hundred twenty thousand, fifty-six".