70071620072 has 32 divisors (see below), whose sum is σ = 131912152320. Its totient is φ = 34895266560.

The previous prime is 70071620041. The next prime is 70071620089. The reversal of 70071620072 is 27002617007.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2658623 + ... + 2684849.

It is an arithmetic number, because the mean of its divisors is an integer number (4122254760).

Almost surely, 2^70071620072 is an apocalyptic number.

It is an amenable number.

70071620072 is a deficient number, since it is larger than the sum of its proper divisors (61840532248).

70071620072 is a wasteful number, since it uses less digits than its factorization.

70071620072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27561 (or 27557 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 32.

The spelling of 70071620072 in words is "seventy billion, seventy-one million, six hundred twenty thousand, seventy-two".