16666453056 has 56 divisors (see below), whose sum is σ = 48105450144. Its totient is φ = 5050439680.

The previous prime is 16666453009. The next prime is 16666453061. The reversal of 16666453056 is 65035466661.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 16666452996 and 16666453014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3943545 + ... + 3947768.

Almost surely, 2^16666453056 is an apocalyptic number.

16666453056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16666453056 is an abundant number, since it is smaller than the sum of its proper divisors (31438997088).

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

16666453056 is a wasteful number, since it uses less digits than its factorization.

16666453056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7891339 (or 7891329 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 16666453056 in words is "sixteen billion, six hundred sixty-six million, four hundred fifty-three thousand, fifty-six".