16001000015 has 128 divisors (see below), whose sum is σ = 27474370560. Its totient is φ = 8609587200.

The previous prime is 16001000003. The next prime is 16001000027. The reversal of 16001000015 is 51000010061.

It is an interprime number because it is at equal distance from previous prime (16001000003) and next prime (16001000027).

It is not a de Polignac number, because 16001000015 - 2²⁶ = 15933891151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15399866 + ... + 15400904.

It is an arithmetic number, because the mean of its divisors is an integer number (214643520).

Almost surely, 2^16001000015 is an apocalyptic number.

16001000015 is a deficient number, since it is larger than the sum of its proper divisors (11473370545).

16001000015 is a wasteful number, since it uses less digits than its factorization.

16001000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273.

The product of its (nonzero) digits is 30, while the sum is 14.

Adding to 16001000015 its reverse (51000010061), we get a palindrome (67001010076).

The spelling of 16001000015 in words is "sixteen billion, one million, fifteen", and thus it is an aban number and an uban number.