15938417136 has 20 divisors (see below), whose sum is σ = 41174244392. Its totient is φ = 5312805696.

The previous prime is 15938417129. The next prime is 15938417149. The reversal of 15938417136 is 63171483951.

It is a super-2 number, since 2×15938417136² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 332050357 = 15938417136 / (1 + 5 + 9 + 3 + 8 + 4 + 1 + 7 + 1 + 3 + 6).

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, 166025131 + ... + 166025226.

Almost surely, 2^15938417136 is an apocalyptic number.

15938417136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15938417136 is an abundant number, since it is smaller than the sum of its proper divisors (25235827256).

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

15938417136 is a wasteful number, since it uses less digits than its factorization.

15938417136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332050368 (or 332050362 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The spelling of 15938417136 in words is "fifteen billion, nine hundred thirty-eight million, four hundred seventeen thousand, one hundred thirty-six".