70072073665 has 32 divisors (see below), whose sum is σ = 93151752192. Its totient is φ = 50174040000.

The previous prime is 70072073639. The next prime is 70072073699. The reversal of 70072073665 is 56637027007.

It is not a de Polignac number, because 70072073665 - 2⁹ = 70072073153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2889340 + ... + 2913490.

It is an arithmetic number, because the mean of its divisors is an integer number (2910992256).

Almost surely, 2^70072073665 is an apocalyptic number.

It is an amenable number.

70072073665 is a deficient number, since it is larger than the sum of its proper divisors (23079678527).

70072073665 is a wasteful number, since it uses less digits than its factorization.

70072073665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24981.

The product of its (nonzero) digits is 370440, while the sum is 43.

The spelling of 70072073665 in words is "seventy billion, seventy-two million, seventy-three thousand, six hundred sixty-five".