167220664 has 32 divisors (see below), whose sum is σ = 338264640. Its totient is φ = 77040000.

The previous prime is 167220659. The next prime is 167220719. The reversal of 167220664 is 466022761.

It is a congruent number.

It is an unprimeable number.

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, 77034 + ... + 79174.

It is an arithmetic number, because the mean of its divisors is an integer number (10570770).

Almost surely, 2^167220664 is an apocalyptic number.

It is an amenable number.

167220664 is an abundant number, since it is smaller than the sum of its proper divisors (171043976).

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

167220664 is a wasteful number, since it uses less digits than its factorization.

167220664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911 (or 2907 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 167220664 is about 12931.3829113517. The cubic root of 167220664 is about 550.9302867545.

The spelling of 167220664 in words is "one hundred sixty-seven million, two hundred twenty thousand, six hundred sixty-four".