16191207650 has 48 divisors (see below), whose sum is σ = 31444041024. Its totient is φ = 6191148480.

The previous prime is 16191207631. The next prime is 16191207661. The reversal of 16191207650 is 5670219161.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2576312 + ... + 2582588.

It is an arithmetic number, because the mean of its divisors is an integer number (655084188).

Almost surely, 2^16191207650 is an apocalyptic number.

16191207650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16191207650 is a deficient number, since it is larger than the sum of its proper divisors (15252833374).

16191207650 is a wasteful number, since it uses less digits than its factorization.

16191207650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555 (or 8550 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 16191207650 in words is "sixteen billion, one hundred ninety-one million, two hundred seven thousand, six hundred fifty".