73666668 has 24 divisors (see below), whose sum is σ = 176082480. Its totient is φ = 23956480.

The previous prime is 73666657. The next prime is 73666753. The reversal of 73666668 is 86666637.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74373 + ... + 75356.

It is an arithmetic number, because the mean of its divisors is an integer number (7336770).

Almost surely, 2^73666668 is an apocalyptic number.

It is an amenable number.

73666668 is an abundant number, since it is smaller than the sum of its proper divisors (102415812).

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

73666668 is a wasteful number, since it uses less digits than its factorization.

73666668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149777 (or 149775 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 48.

The square root of 73666668 is about 8582.9288707294. The cubic root of 73666668 is about 419.2023181675.

The spelling of 73666668 in words is "seventy-three million, six hundred sixty-six thousand, six hundred sixty-eight".