212185015608 has 32 divisors (see below), whose sum is σ = 531551813760. Its totient is φ = 70583101920.

The previous prime is 212185015589. The next prime is 212185015643. The reversal of 212185015608 is 806510581212.

212185015608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 9065358 + ... + 9088733.

It is an arithmetic number, because the mean of its divisors is an integer number (16610994180).

Almost surely, 2^212185015608 is an apocalyptic number.

It is an amenable number.

212185015608 is an abundant number, since it is smaller than the sum of its proper divisors (319366798152).

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

212185015608 is a wasteful number, since it uses less digits than its factorization.

212185015608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18154587 (or 18154583 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 39.

The spelling of 212185015608 in words is "two hundred twelve billion, one hundred eighty-five million, fifteen thousand, six hundred eight".