16649190892 has 6 divisors (see below), whose sum is σ = 29136084068. Its totient is φ = 8324595444.

The previous prime is 16649190889. The next prime is 16649190913. The reversal of 16649190892 is 29809194661.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2081148858 + ... + 2081148865.

Almost surely, 2^16649190892 is an apocalyptic number.

It is an amenable number.

16649190892 is a deficient number, since it is larger than the sum of its proper divisors (12486893176).

16649190892 is a wasteful number, since it uses less digits than its factorization.

16649190892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162297727 (or 4162297725 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 55.

The spelling of 16649190892 in words is "sixteen billion, six hundred forty-nine million, one hundred ninety thousand, eight hundred ninety-two".