70686618220 has 48 divisors (see below), whose sum is σ = 151186448448. Its totient is φ = 27753788160.

The previous prime is 70686618203. The next prime is 70686618227. The reversal of 70686618220 is 2281668607.

It is not an unprimeable number, because it can be changed into a prime (70686618227) 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, 534654 + ... + 653626.

It is an arithmetic number, because the mean of its divisors is an integer number (3149717676).

Almost surely, 2^70686618220 is an apocalyptic number.

It is an amenable number.

70686618220 is an abundant number, since it is smaller than the sum of its proper divisors (80499830228).

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

70686618220 is a wasteful number, since it uses less digits than its factorization.

70686618220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119530 (or 119528 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 70686618220 in words is "seventy billion, six hundred eighty-six million, six hundred eighteen thousand, two hundred twenty".