16137689616 has 50 divisors (see below), whose sum is σ = 46707159422. Its totient is φ = 5379229440.

The previous prime is 16137689609. The next prime is 16137689621. The reversal of 16137689616 is 61698673161.

16137689616 is a `hidden beast` number, since 1 + 6 + 13 + 7 + 6 + 8 + 9 + 616 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10749542400 + 5388147216 = 103680^2 + 73404^2 .

It is a super-2 number, since 2×16137689616² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6224665 + ... + 6227256.

Almost surely, 2^16137689616 is an apocalyptic number.

16137689616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16137689616 is an abundant number, since it is smaller than the sum of its proper divisors (30569469806).

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

16137689616 is a wasteful number, since it uses less digits than its factorization.

16137689616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12451941 (or 12451926 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 16137689616 in words is "sixteen billion, one hundred thirty-seven million, six hundred eighty-nine thousand, six hundred sixteen".