516400664 has 16 divisors (see below), whose sum is σ = 1042732320. Its totient is φ = 238338720.

The previous prime is 516400649. The next prime is 516400667. The reversal of 516400664 is 466004615.

It is a self number, because there is not a number n which added to its sum of digits gives 516400664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516400667) 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, 2482592 + ... + 2482799.

It is an arithmetic number, because the mean of its divisors is an integer number (65170770).

Almost surely, 2^516400664 is an apocalyptic number.

It is an amenable number.

516400664 is an abundant number, since it is smaller than the sum of its proper divisors (526331656).

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

516400664 is a wasteful number, since it uses less digits than its factorization.

516400664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965410 (or 4965406 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 516400664 is about 22724.4507964439. The cubic root of 516400664 is about 802.2854770258.

The spelling of 516400664 in words is "five hundred sixteen million, four hundred thousand, six hundred sixty-four".