16979393025 has 243 divisors, whose sum is σ = 38102480091. Its totient is φ = 7205345280.

The previous prime is 16979393023. The next prime is 16979393029. The reversal of 16979393025 is 52039397961.

16979393025 = 1³ + 2³ + ... + 510³.

It is a happy number.

The square root of 16979393025 is 130305.

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

16979393025 is a `hidden beast` number, since 169 + 79 + 393 + 0 + 25 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 4852097649 + 12127295376 = 69657^2 + 110124^2 .

It is not a de Polignac number, because 16979393025 - 2¹ = 16979393023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16979393023) by changing a digit.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 232594389 + ... + 232594461.

Almost surely, 2^16979393025 is an apocalyptic number.

16979393025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16979393025 is the 130305-th square number.

16979393025 is the 65153-rd centered octagonal number.

It is an amenable number.

16979393025 is an abundant number, since it is smaller than the sum of its proper divisors (21123087066).

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

16979393025 is a wasteful number, since it uses less digits than its factorization.

16979393025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 54.

The spelling of 16979393025 in words is "sixteen billion, nine hundred seventy-nine million, three hundred ninety-three thousand, twenty-five".