70666515008 has 56 divisors (see below), whose sum is σ = 149026132224. Its totient is φ = 33131980800.

The previous prime is 70666515001. The next prime is 70666515041. The reversal of 70666515008 is 80051566607.

It is a self number, because there is not a number n which added to its sum of digits gives 70666515008.

It is not an unprimeable number, because it can be changed into a prime (70666515001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175013 + ... + 414683.

Almost surely, 2^70666515008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70666515008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74513066112).

70666515008 is an abundant number, since it is smaller than the sum of its proper divisors (78359617216).

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

70666515008 is a wasteful number, since it uses less digits than its factorization.

70666515008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239971 (or 239961 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 70666515008 in words is "seventy billion, six hundred sixty-six million, five hundred fifteen thousand, eight".