212554664 has 16 divisors (see below), whose sum is σ = 455474400. Its totient is φ = 91094832.

The previous prime is 212554663. The next prime is 212554669. The reversal of 212554664 is 466455212.

212554664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212554663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897754 + ... + 1897865.

It is an arithmetic number, because the mean of its divisors is an integer number (28467150).

Almost surely, 2^212554664 is an apocalyptic number.

It is an amenable number.

212554664 is an abundant number, since it is smaller than the sum of its proper divisors (242919736).

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

212554664 is a wasteful number, since it uses less digits than its factorization.

212554664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795632 (or 3795628 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 212554664 is about 14579.2545762806. The cubic root of 212554664 is about 596.7927606474.

The spelling of 212554664 in words is "two hundred twelve million, five hundred fifty-four thousand, six hundred sixty-four".