16641125456 has 10 divisors (see below), whose sum is σ = 32242180602. Its totient is φ = 8320562720.

The previous prime is 16641125443. The next prime is 16641125483. The reversal of 16641125456 is 65452114661.

It can be written as a sum of positive squares in only one way, i.e., 12413525056 + 4227600400 = 111416^2 + 65020^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520035155 + ... + 520035186.

Almost surely, 2^16641125456 is an apocalyptic number.

16641125456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16641125456 is a deficient number, since it is larger than the sum of its proper divisors (15601055146).

16641125456 is a wasteful number, since it uses less digits than its factorization.

16641125456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040070349 (or 1040070343 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The spelling of 16641125456 in words is "sixteen billion, six hundred forty-one million, one hundred twenty-five thousand, four hundred fifty-six".