73668166186637 has 8 divisors (see below), whose sum is σ = 80366517004032. Its totient is φ = 66970022836000.

The previous prime is 73668166186607. The next prime is 73668166186687.

73668166186637 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73668166186637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73668166186607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51123773 + ... + 52544994.

It is an arithmetic number, because the mean of its divisors is an integer number (10045814625504).

Almost surely, 2^{73668166186637} is an apocalyptic number.

It is an amenable number.

73668166186637 is a deficient number, since it is larger than the sum of its proper divisors (6698350817395).

73668166186637 is a wasteful number, since it uses less digits than its factorization.

73668166186637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103733379.

The product of its digits is 1316818944, while the sum is 74.

The spelling of 73668166186637 in words is "seventy-three trillion, six hundred sixty-eight billion, one hundred sixty-six million, one hundred eighty-six thousand, six hundred thirty-seven".