16240938128 has 20 divisors (see below), whose sum is σ = 31469911020. Its totient is φ = 8119670784.

The previous prime is 16240938113. The next prime is 16240938143. The reversal of 16240938128 is 82183904261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16240938113) and next prime (16240938143).

It can be written as a sum of positive squares in 2 ways, for example, as 12110562304 + 4130375824 = 110048^2 + 64268^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139808 + ... + 228096.

It is an arithmetic number, because the mean of its divisors is an integer number (1573495551).

Almost surely, 2^16240938128 is an apocalyptic number.

It is an amenable number.

16240938128 is a deficient number, since it is larger than the sum of its proper divisors (15228972892).

16240938128 is a wasteful number, since it uses less digits than its factorization.

16240938128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99794 (or 99788 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 16240938128 in words is "sixteen billion, two hundred forty million, nine hundred thirty-eight thousand, one hundred twenty-eight".