668162470 has 16 divisors (see below), whose sum is σ = 1214602128. Its totient is φ = 264618400.

The previous prime is 668162461. The next prime is 668162471. The reversal of 668162470 is 74261866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668162471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329764 + ... + 331783.

It is an arithmetic number, because the mean of its divisors is an integer number (75912633).

Almost surely, 2^668162470 is an apocalyptic number.

668162470 is a deficient number, since it is larger than the sum of its proper divisors (546439658).

668162470 is a wasteful number, since it uses less digits than its factorization.

668162470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661655.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 668162470 is about 25848.8388520645. The cubic root of 668162470 is about 874.2333289868.

The spelling of 668162470 in words is "six hundred sixty-eight million, one hundred sixty-two thousand, four hundred seventy".