70716566512 has 20 divisors (see below), whose sum is σ = 137310570936. Its totient is φ = 35281580480.

The previous prime is 70716566491. The next prime is 70716566519. The reversal of 70716566512 is 21566561707.

It is a happy number.

It is a super-2 number, since 2×70716566512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70716566519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4786318 + ... + 4801069.

Almost surely, 2^70716566512 is an apocalyptic number.

It is an amenable number.

70716566512 is a deficient number, since it is larger than the sum of its proper divisors (66594004424).

70716566512 is a wasteful number, since it uses less digits than its factorization.

70716566512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587856 (or 9587850 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 70716566512 in words is "seventy billion, seven hundred sixteen million, five hundred sixty-six thousand, five hundred twelve".