73666136 has 8 divisors (see below), whose sum is σ = 138124020. Its totient is φ = 36833064.

The previous prime is 73666123. The next prime is 73666163. The reversal of 73666136 is 63166637.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 73666136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4604126 + ... + 4604141.

Almost surely, 2^73666136 is an apocalyptic number.

It is an amenable number.

73666136 is a deficient number, since it is larger than the sum of its proper divisors (64457884).

73666136 is a wasteful number, since it uses less digits than its factorization.

73666136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9208273 (or 9208269 counting only the distinct ones).

The product of its digits is 81648, while the sum is 38.

The square root of 73666136 is about 8582.8978789218. The cubic root of 73666136 is about 419.2013090445.

The spelling of 73666136 in words is "seventy-three million, six hundred sixty-six thousand, one hundred thirty-six".