210051664 has 40 divisors (see below), whose sum is σ = 420310400. Its totient is φ = 101616768.

The previous prime is 210051661. The next prime is 210051671. The reversal of 210051664 is 466150012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210051661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116917 + ... + 118699.

It is an arithmetic number, because the mean of its divisors is an integer number (10507760).

Almost surely, 2^210051664 is an apocalyptic number.

It is an amenable number.

210051664 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

210051664 is a wasteful number, since it uses less digits than its factorization.

210051664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 210051664 is about 14493.1592139188. The cubic root of 210051664 is about 594.4409352135.

The spelling of 210051664 in words is "two hundred ten million, fifty-one thousand, six hundred sixty-four".