38222172664 has 16 divisors (see below), whose sum is σ = 77179387320. Its totient is φ = 17641002720.

The previous prime is 38222172623. The next prime is 38222172671. The reversal of 38222172664 is 46627122283.

It is a super-3 number, since 3×38222172664³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38222172664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183760342 + ... + 183760549.

Almost surely, 2^38222172664 is an apocalyptic number.

It is an amenable number.

38222172664 is an abundant number, since it is smaller than the sum of its proper divisors (38957214656).

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

38222172664 is a wasteful number, since it uses less digits than its factorization.

38222172664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367520910 (or 367520906 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The spelling of 38222172664 in words is "thirty-eight billion, two hundred twenty-two million, one hundred seventy-two thousand, six hundred sixty-four".