67662664 has 24 divisors (see below), whose sum is σ = 129038130. Its totient is φ = 33262080.

The previous prime is 67662653. The next prime is 67662671. The reversal of 67662664 is 46626676.

It can be written as a sum of positive squares in 3 ways, for example, as 34692100 + 32970564 = 5890^2 + 5742^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67662664.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28632 + ... + 30904.

Almost surely, 2^67662664 is an apocalyptic number.

It is an amenable number.

67662664 is a deficient number, since it is larger than the sum of its proper divisors (61375466).

67662664 is a wasteful number, since it uses less digits than its factorization.

67662664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401 (or 2336 counting only the distinct ones).

The product of its digits is 435456, while the sum is 43.

The square root of 67662664 is about 8225.7318215463. The cubic root of 67662664 is about 407.4894453211.

The spelling of 67662664 in words is "sixty-seven million, six hundred sixty-two thousand, six hundred sixty-four".