16638776530 has 32 divisors (see below), whose sum is σ = 30330267264. Its totient is φ = 6571412736.

The previous prime is 16638776519. The next prime is 16638776549. The reversal of 16638776530 is 3567783661.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269197 + ... + 325183.

It is an arithmetic number, because the mean of its divisors is an integer number (947820852).

Almost surely, 2^16638776530 is an apocalyptic number.

16638776530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16638776530 is a deficient number, since it is larger than the sum of its proper divisors (13691490734).

16638776530 is a wasteful number, since it uses less digits than its factorization.

16638776530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56370.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 16638776530 in words is "sixteen billion, six hundred thirty-eight million, seven hundred seventy-six thousand, five hundred thirty".