668834510 has 16 divisors (see below), whose sum is σ = 1205159472. Its totient is φ = 267254400.

The previous prime is 668834489. The next prime is 668834567. The reversal of 668834510 is 15438866.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24731 + ... + 44150.

It is an arithmetic number, because the mean of its divisors is an integer number (75322467).

Almost surely, 2^668834510 is an apocalyptic number.

668834510 is a deficient number, since it is larger than the sum of its proper divisors (536324962).

668834510 is a wasteful number, since it uses less digits than its factorization.

668834510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69859.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 668834510 is about 25861.8350083671. The cubic root of 668834510 is about 874.5263330221.

The spelling of 668834510 in words is "six hundred sixty-eight million, eight hundred thirty-four thousand, five hundred ten".