16698681137424 has 160 divisors (see below), whose sum is σ = 50682190132224. Its totient is φ = 4670749923840.

The previous prime is 16698681137423. The next prime is 16698681137441. The reversal of 16698681137424 is 42473118689661.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (16698681137423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213589189 + ... + 213667355.

Almost surely, 2^{16698681137424} is an apocalyptic number.

It is an amenable number.

16698681137424 is an abundant number, since it is smaller than the sum of its proper divisors (33983508994800).

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

16698681137424 is a wasteful number, since it uses less digits than its factorization.

16698681137424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109325 (or 109319 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 66.

The spelling of 16698681137424 in words is "sixteen trillion, six hundred ninety-eight billion, six hundred eighty-one million, one hundred thirty-seven thousand, four hundred twenty-four".