716663551556 has 12 divisors (see below), whose sum is σ = 1254439146492. Its totient is φ = 358252366848.

The previous prime is 716663551547. The next prime is 716663551601. The reversal of 716663551556 is 655155366617.

It can be written as a sum of positive squares in 2 ways, for example, as 35262830656 + 681400720900 = 187784^2 + 825470^2 .

It is a super-2 number, since 2×716663551556² (a number of 25 digits) contains 22 as substring.

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, 19831925 + ... + 19868028.

It is an arithmetic number, because the mean of its divisors is an integer number (104536595541).

Almost surely, 2^716663551556 is an apocalyptic number.

It is an amenable number.

716663551556 is a deficient number, since it is larger than the sum of its proper divisors (537775594936).

716663551556 is a wasteful number, since it uses less digits than its factorization.

716663551556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39704470 (or 39704468 counting only the distinct ones).

The product of its digits is 17010000, while the sum is 56.

The spelling of 716663551556 in words is "seven hundred sixteen billion, six hundred sixty-three million, five hundred fifty-one thousand, five hundred fifty-six".