16696131264 has 112 divisors (see below), whose sum is σ = 49675328640. Its totient is φ = 5498277120.

The previous prime is 16696131251. The next prime is 16696131293. The reversal of 16696131264 is 46213169661.

16696131264 is a `hidden beast` number, since 1 + 6 + 6 + 9 + 613 + 1 + 26 + 4 = 666.

It is a super-3 number, since 3×16696131264³ (a number of 32 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85219 + ... + 201629.

It is an arithmetic number, because the mean of its divisors is an integer number (443529720).

Almost surely, 2^16696131264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16696131264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24837664320).

16696131264 is an abundant number, since it is smaller than the sum of its proper divisors (32979197376).

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

16696131264 is a wasteful number, since it uses less digits than its factorization.

16696131264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116515 (or 116499 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The spelling of 16696131264 in words is "sixteen billion, six hundred ninety-six million, one hundred thirty-one thousand, two hundred sixty-four".