70570656 has 192 divisors, whose sum is σ = 227485440. Its totient is φ = 21150720.

The previous prime is 70570637. The next prime is 70570657. The reversal of 70570656 is 65607507.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 70570656.

It is not an unprimeable number, because it can be changed into a prime (70570657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685101 + ... + 685203.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^70570656 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 70570656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113742720).

70570656 is an abundant number, since it is smaller than the sum of its proper divisors (156914784).

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

70570656 is a wasteful number, since it uses less digits than its factorization.

70570656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 70570656 is about 8400.6342617686. The cubic root of 70570656 is about 413.2454223952.

The spelling of 70570656 in words is "seventy million, five hundred seventy thousand, six hundred fifty-six".