70850557656 has 64 divisors (see below), whose sum is σ = 196956211200. Its totient is φ = 23598959904.

The previous prime is 70850557649. The next prime is 70850557663. The reversal of 70850557656 is 65675505807.

70850557656 is a `hidden beast` number, since 7 + 0 + 85 + 0 + 557 + 6 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (70850557649) and next prime (70850557663).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163041 + ... + 410223.

It is an arithmetic number, because the mean of its divisors is an integer number (3077440800).

Almost surely, 2^70850557656 is an apocalyptic number.

It is an amenable number.

70850557656 is an abundant number, since it is smaller than the sum of its proper divisors (126105653544).

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

70850557656 is a wasteful number, since it uses less digits than its factorization.

70850557656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248525 (or 248515 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 54.

The spelling of 70850557656 in words is "seventy billion, eight hundred fifty million, five hundred fifty-seven thousand, six hundred fifty-six".