212660552526 has 32 divisors (see below), whose sum is σ = 433657520928. Its totient is φ = 69504781440.

The previous prime is 212660552501. The next prime is 212660552543. The reversal of 212660552526 is 625255066212.

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, 800445 + ... + 1032488.

It is an arithmetic number, because the mean of its divisors is an integer number (13551797529).

Almost surely, 2^212660552526 is an apocalyptic number.

212660552526 is an abundant number, since it is smaller than the sum of its proper divisors (220996968402).

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

212660552526 is a wasteful number, since it uses less digits than its factorization.

212660552526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833316.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 212660552526 in words is "two hundred twelve billion, six hundred sixty million, five hundred fifty-two thousand, five hundred twenty-six".