16693542408 has 32 divisors (see below), whose sum is σ = 43080111360. Its totient is φ = 5385013440.

The previous prime is 16693542401. The next prime is 16693542413. The reversal of 16693542408 is 80424539661.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16693542401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11218035 + ... + 11219522.

It is an arithmetic number, because the mean of its divisors is an integer number (1346253480).

Almost surely, 2^16693542408 is an apocalyptic number.

It is an amenable number.

16693542408 is an abundant number, since it is smaller than the sum of its proper divisors (26386568952).

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

16693542408 is a wasteful number, since it uses less digits than its factorization.

16693542408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22437597 (or 22437593 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 16693542408 in words is "sixteen billion, six hundred ninety-three million, five hundred forty-two thousand, four hundred eight".