70213315256 has 64 divisors (see below), whose sum is σ = 152305401600. Its totient is φ = 29723404032.

The previous prime is 70213315247. The next prime is 70213315309. The reversal of 70213315256 is 65251331207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2062340 + ... + 2096108.

It is an arithmetic number, because the mean of its divisors is an integer number (2379771900).

Almost surely, 2^70213315256 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 70213315256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76152700800).

70213315256 is an abundant number, since it is smaller than the sum of its proper divisors (82092086344).

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

70213315256 is a wasteful number, since it uses less digits than its factorization.

70213315256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34236 (or 34232 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 70213315256 in words is "seventy billion, two hundred thirteen million, three hundred fifteen thousand, two hundred fifty-six".