70174990656 has 448 divisors, whose sum is σ = 222382080000. Its totient is φ = 21650872320.

The previous prime is 70174990651. The next prime is 70174990679. The reversal of 70174990656 is 65609947107.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70174990651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 309140815 + ... + 309141041.

Almost surely, 2^70174990656 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 70174990656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111191040000).

70174990656 is an abundant number, since it is smaller than the sum of its proper divisors (152207089344).

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

70174990656 is a wasteful number, since it uses less digits than its factorization.

70174990656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 70174990656 in words is "seventy billion, one hundred seventy-four million, nine hundred ninety thousand, six hundred fifty-six".