16665354416 has 10 divisors (see below), whose sum is σ = 32289124212. Its totient is φ = 8332677200.

The previous prime is 16665354403. The next prime is 16665354427. The reversal of 16665354416 is 61445356661.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520792310 + ... + 520792341.

Almost surely, 2^16665354416 is an apocalyptic number.

16665354416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16665354416 is a deficient number, since it is larger than the sum of its proper divisors (15623769796).

16665354416 is a wasteful number, since it uses less digits than its factorization.

16665354416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041584659 (or 1041584653 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 47.

The spelling of 16665354416 in words is "sixteen billion, six hundred sixty-five million, three hundred fifty-four thousand, four hundred sixteen".