70665143928 has 32 divisors (see below), whose sum is σ = 178226254800. Its totient is φ = 23346595328.

The previous prime is 70665143921. The next prime is 70665143951. The reversal of 70665143928 is 82934156607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70665143921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13025523 + ... + 13030946.

It is a 1-persistent number, because it is pandigital, but 2⋅70665143928 = 141330287856 is not.

Almost surely, 2^70665143928 is an apocalyptic number.

It is an amenable number.

70665143928 is an abundant number, since it is smaller than the sum of its proper divisors (107561110872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70665143928 is a wasteful number, since it uses less digits than its factorization.

70665143928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26056591 (or 26056587 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 70665143928 in words is "seventy billion, six hundred sixty-five million, one hundred forty-three thousand, nine hundred twenty-eight".