16691613160 has 32 divisors (see below), whose sum is σ = 38571163560. Its totient is φ = 6496194816.

The previous prime is 16691613157. The next prime is 16691613161. The reversal of 16691613160 is 6131619661.

It can be written as a sum of positive squares in 4 ways, for example, as 11585939044 + 5105674116 = 107638^2 + 71454^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (16691613161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5637579 + ... + 5640538.

Almost surely, 2^16691613160 is an apocalyptic number.

16691613160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16691613160 is an abundant number, since it is smaller than the sum of its proper divisors (21879550400).

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

16691613160 is a wasteful number, since it uses less digits than its factorization.

16691613160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11278165 (or 11278161 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 16691613160 in words is "sixteen billion, six hundred ninety-one million, six hundred thirteen thousand, one hundred sixty".