128101357656 has 64 divisors (see below), whose sum is σ = 356052847200. Its totient is φ = 42674563584.

The previous prime is 128101357649. The next prime is 128101357669. The reversal of 128101357656 is 656753101821.

128101357656 is a `hidden beast` number, since 1 + 2 + 8 + 10 + 13 + 576 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178956 + ... + 536868.

Almost surely, 2^128101357656 is an apocalyptic number.

It is a pronic number, being equal to 357912×357913.

It is an amenable number.

128101357656 is an abundant number, since it is smaller than the sum of its proper divisors (227951489544).

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

128101357656 is a wasteful number, since it uses less digits than its factorization.

128101357656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359585 (or 359575 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 128101357656 in words is "one hundred twenty-eight billion, one hundred one million, three hundred fifty-seven thousand, six hundred fifty-six".