16125729015 has 32 divisors (see below), whose sum is σ = 29802422016. Its totient is φ = 7358620160.

The previous prime is 16125728977. The next prime is 16125729047. The reversal of 16125729015 is 51092752161.

It is not a de Polignac number, because 16125729015 - 2¹⁸ = 16125466871 is a prime.

It is a congruent number.

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, 2871657 + ... + 2877266.

It is an arithmetic number, because the mean of its divisors is an integer number (931325688).

Almost surely, 2^16125729015 is an apocalyptic number.

16125729015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16125729015 is a deficient number, since it is larger than the sum of its proper divisors (13676693001).

16125729015 is a wasteful number, since it uses less digits than its factorization.

16125729015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748959.

The product of its (nonzero) digits is 37800, while the sum is 39.

The spelling of 16125729015 in words is "sixteen billion, one hundred twenty-five million, seven hundred twenty-nine thousand, fifteen".