73166122637 has 4 divisors (see below), whose sum is σ = 73692497760. Its totient is φ = 72639747516.

The previous prime is 73166122591. The next prime is 73166122727. The reversal of 73166122637 is 73622166137.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73166122637 - 2⁶ = 73166122573 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 (73166122037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263187353 + ... + 263187630.

It is an arithmetic number, because the mean of its divisors is an integer number (18423124440).

Almost surely, 2^73166122637 is an apocalyptic number.

It is an amenable number.

73166122637 is a deficient number, since it is larger than the sum of its proper divisors (526375123).

73166122637 is a wasteful number, since it uses less digits than its factorization.

73166122637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526375122.

The product of its digits is 381024, while the sum is 44.

The spelling of 73166122637 in words is "seventy-three billion, one hundred sixty-six million, one hundred twenty-two thousand, six hundred thirty-seven".