16551901930 has 64 divisors (see below), whose sum is σ = 33027160320. Its totient is φ = 5940532224.

The previous prime is 16551901921. The next prime is 16551901957. The reversal of 16551901930 is 3910915561.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193476 + ... + 1207264.

It is an arithmetic number, because the mean of its divisors is an integer number (516049380).

Almost surely, 2^16551901930 is an apocalyptic number.

16551901930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16551901930 is a deficient number, since it is larger than the sum of its proper divisors (16475258390).

16551901930 is a wasteful number, since it uses less digits than its factorization.

16551901930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14143.

The product of its (nonzero) digits is 36450, while the sum is 40.

The spelling of 16551901930 in words is "sixteen billion, five hundred fifty-one million, nine hundred one thousand, nine hundred thirty".