70428965656 has 16 divisors (see below), whose sum is σ = 150919212240. Its totient is φ = 30183842400.

The previous prime is 70428965653. The next prime is 70428965681. The reversal of 70428965656 is 65656982407.

It is a self number, because there is not a number n which added to its sum of digits gives 70428965656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70428965653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628829995 + ... + 628830106.

It is an arithmetic number, because the mean of its divisors is an integer number (9432450765).

Almost surely, 2^70428965656 is an apocalyptic number.

It is an amenable number.

70428965656 is an abundant number, since it is smaller than the sum of its proper divisors (80490246584).

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

70428965656 is a wasteful number, since it uses less digits than its factorization.

70428965656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257660114 (or 1257660110 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 70428965656 in words is "seventy billion, four hundred twenty-eight million, nine hundred sixty-five thousand, six hundred fifty-six".