210212664 has 16 divisors (see below), whose sum is σ = 525531720. Its totient is φ = 70070880.

The previous prime is 210212659. The next prime is 210212671. The reversal of 210212664 is 466212012.

210212664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 8758861 = 210212664 / (2 + 1 + 0 + 2 + 1 + 2 + 6 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379407 + ... + 4379454.

Almost surely, 2^210212664 is an apocalyptic number.

210212664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210212664 is an abundant number, since it is smaller than the sum of its proper divisors (315319056).

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

210212664 is a wasteful number, since it uses less digits than its factorization.

210212664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758870 (or 8758866 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 210212664 is about 14498.7124945631. The cubic root of 210212664 is about 594.5927717462.

Adding to 210212664 its reverse (466212012), we get a palindrome (676424676).

The spelling of 210212664 in words is "two hundred ten million, two hundred twelve thousand, six hundred sixty-four".