67120664 has 32 divisors (see below), whose sum is σ = 139203120. Its totient is φ = 30139776.

The previous prime is 67120657. The next prime is 67120681. The reversal of 67120664 is 46602176.

It is a self number, because there is not a number n which added to its sum of digits gives 67120664.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4874 + ... + 12569.

Almost surely, 2^67120664 is an apocalyptic number.

It is an amenable number.

67120664 is an abundant number, since it is smaller than the sum of its proper divisors (72082456).

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

67120664 is a wasteful number, since it uses less digits than its factorization.

67120664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17499 (or 17495 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 67120664 is about 8192.7201831870. The cubic root of 67120664 is about 406.3984860288.

The spelling of 67120664 in words is "sixty-seven million, one hundred twenty thousand, six hundred sixty-four".