16325625456 has 120 divisors (see below), whose sum is σ = 52733407584. Its totient is φ = 4618252800.

The previous prime is 16325625443. The next prime is 16325625479. The reversal of 16325625456 is 65452652361.

16325625456 is a `hidden beast` number, since 1 + 6 + 32 + 562 + 5 + 4 + 56 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21630 + ... + 181986.

Almost surely, 2^16325625456 is an apocalyptic number.

16325625456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16325625456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26366703792).

16325625456 is an abundant number, since it is smaller than the sum of its proper divisors (36407782128).

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

16325625456 is a wasteful number, since it uses less digits than its factorization.

16325625456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160479 (or 160470 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 16325625456 in words is "sixteen billion, three hundred twenty-five million, six hundred twenty-five thousand, four hundred fifty-six".