70117656 has 64 divisors (see below), whose sum is σ = 212129280. Its totient is φ = 18854400.

The previous prime is 70117651. The next prime is 70117681. The reversal of 70117656 is 65671107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70117651) 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, 9420 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (3314520).

Almost surely, 2^70117656 is an apocalyptic number.

It is an amenable number.

70117656 is an abundant number, since it is smaller than the sum of its proper divisors (142011624).

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

70117656 is a wasteful number, since it uses less digits than its factorization.

70117656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24584 (or 24580 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 70117656 is about 8373.6286041357. The cubic root of 70117656 is about 412.3593026126.

The spelling of 70117656 in words is "seventy million, one hundred seventeen thousand, six hundred fifty-six".