1659702960656 has 80 divisors (see below), whose sum is σ = 3552644782848. Its totient is φ = 746249241600.

The previous prime is 1659702960613. The next prime is 1659702960701. The reversal of 1659702960656 is 6560692079561.

It is a super-2 number, since 2×1659702960656² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5752025 + ... + 6033671.

Almost surely, 2^{1659702960656} is an apocalyptic number.

1659702960656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1659702960656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1776322391424).

1659702960656 is an abundant number, since it is smaller than the sum of its proper divisors (1892941822192).

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

1659702960656 is a wasteful number, since it uses less digits than its factorization.

1659702960656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282400 (or 282394 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 62.

The spelling of 1659702960656 in words is "one trillion, six hundred fifty-nine billion, seven hundred two million, nine hundred sixty thousand, six hundred fifty-six".