212632001856 has 112 divisors (see below), whose sum is σ = 634428886080. Its totient is φ = 69819425280.

The previous prime is 212632001849. The next prime is 212632001861. The reversal of 212632001856 is 658100236212.

212632001856 is a `hidden beast` number, since 2 + 1 + 2 + 632 + 0 + 0 + 18 + 5 + 6 = 666.

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 212632001856.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 802515 + ... + 1034066.

Almost surely, 2^212632001856 is an apocalyptic number.

It is an amenable number.

212632001856 is an abundant number, since it is smaller than the sum of its proper divisors (421796884224).

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

212632001856 is a wasteful number, since it uses less digits than its factorization.

212632001856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836669 (or 1836653 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 212632001856 in words is "two hundred twelve billion, six hundred thirty-two million, one thousand, eight hundred fifty-six".