20708087776996 has 81 divisors (see below), whose sum is σ = 39530664899523. Its totient is φ = 9490214484720.

The previous prime is 20708087776963. The next prime is 20708087777009. The reversal of 20708087776996 is 69967778080702.

The square root of 20708087776996 is 4550614.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×20708087776996³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5360621361 + ... + 5360625223.

Almost surely, 2^{20708087776996} is an apocalyptic number.

20708087776996 is the 4550614-th square number.

It is an amenable number.

20708087776996 is a deficient number, since it is larger than the sum of its proper divisors (18822577122527).

20708087776996 is an frugal number, since it uses more digits than its factorization.

20708087776996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7830 (or 3915 counting only the distinct ones).

The product of its (nonzero) digits is 896168448, while the sum is 76.

The spelling of 20708087776996 in words is "twenty trillion, seven hundred eight billion, eighty-seven million, seven hundred seventy-six thousand, nine hundred ninety-six".