16678504738 has 32 divisors (see below), whose sum is σ = 30340030464. Its totient is φ = 6712699392.

The previous prime is 16678504697. The next prime is 16678504819. The reversal of 16678504738 is 83740587661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32095 + ... + 185437.

It is an arithmetic number, because the mean of its divisors is an integer number (948125952).

Almost surely, 2^16678504738 is an apocalyptic number.

16678504738 is a deficient number, since it is larger than the sum of its proper divisors (13661525726).

16678504738 is a wasteful number, since it uses less digits than its factorization.

16678504738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153826.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 16678504738 in words is "sixteen billion, six hundred seventy-eight million, five hundred four thousand, seven hundred thirty-eight".