16198725255696 has 75 divisors (see below), whose sum is σ = 46884229881951. Its totient is φ = 5399526788064.

The previous prime is 16198725255677. The next prime is 16198725255701. The reversal of 16198725255696 is 69655252789161.

The square root of 16198725255696 is 4024764.

It is a perfect power (a square), and thus also a powerful number.

16198725255696 is a `hidden beast` number, since 1 + 6 + 1 + 9 + 8 + 7 + 2 + 52 + 5 + 569 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 144835605 + ... + 144947403.

Almost surely, 2^{16198725255696} is an apocalyptic number.

16198725255696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

16198725255696 is the 4024764-th square number.

It is an amenable number.

16198725255696 is an abundant number, since it is smaller than the sum of its proper divisors (30685504626255).

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

16198725255696 is an frugal number, since it uses more digits than its factorization.

16198725255696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223618 (or 111804 counting only the distinct ones).

The product of its digits is 489888000, while the sum is 72.

The spelling of 16198725255696 in words is "sixteen trillion, one hundred ninety-eight billion, seven hundred twenty-five million, two hundred fifty-five thousand, six hundred ninety-six".