16725268458 has 24 divisors (see below), whose sum is σ = 36292930596. Its totient is φ = 5566651200.

The previous prime is 16725268451. The next prime is 16725268463. The reversal of 16725268458 is 85486252761.

16725268458 is a `hidden beast` number, since 1 + 6 + 72 + 526 + 8 + 45 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15960026889 + 765241569 = 126333^2 + 27663^2 .

It is not an unprimeable number, because it can be changed into a prime (16725268451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690963 + ... + 714758.

Almost surely, 2^16725268458 is an apocalyptic number.

16725268458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16725268458 is an abundant number, since it is smaller than the sum of its proper divisors (19567662138).

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

16725268458 is a wasteful number, since it uses less digits than its factorization.

16725268458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406390 (or 1406387 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 16725268458 in words is "sixteen billion, seven hundred twenty-five million, two hundred sixty-eight thousand, four hundred fifty-eight".