70065071651 has 16 divisors (see below), whose sum is σ = 74446387200. Its totient is φ = 65712873600.

The previous prime is 70065071641. The next prime is 70065071683. The reversal of 70065071651 is 15617056007.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70065071651 is a prime.

It is a super-2 number, since 2×70065071651² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70065071611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14149226 + ... + 14154176.

It is an arithmetic number, because the mean of its divisors is an integer number (4652899200).

Almost surely, 2^70065071651 is an apocalyptic number.

70065071651 is a deficient number, since it is larger than the sum of its proper divisors (4381315549).

70065071651 is a wasteful number, since it uses less digits than its factorization.

70065071651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 70065071651 in words is "seventy billion, sixty-five million, seventy-one thousand, six hundred fifty-one".