73051806666 has 16 divisors (see below), whose sum is σ = 154697943744. Its totient is φ = 22918213824.

The previous prime is 73051806643. The next prime is 73051806677. The reversal of 73051806666 is 66660815037.

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, 358096990 + ... + 358097193.

It is an arithmetic number, because the mean of its divisors is an integer number (9668621484).

Almost surely, 2^73051806666 is an apocalyptic number.

73051806666 is an abundant number, since it is smaller than the sum of its proper divisors (81646137078).

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

73051806666 is a wasteful number, since it uses less digits than its factorization.

73051806666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716194205.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 73051806666 in words is "seventy-three billion, fifty-one million, eight hundred six thousand, six hundred sixty-six".