16042432769 has 12 divisors (see below), whose sum is σ = 17874981348. Its totient is φ = 14384240640.

The previous prime is 16042432759. The next prime is 16042432837. The reversal of 16042432769 is 96723424061.

It can be written as a sum of positive squares in 2 ways, for example, as 13107502144 + 2934930625 = 114488^2 + 54175^2 .

It is not a de Polignac number, because 16042432769 - 2²⁴ = 16025655553 is a prime.

It is a super-2 number, since 2×16042432769² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16042432729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 899264 + ... + 916929.

It is an arithmetic number, because the mean of its divisors is an integer number (1489581779).

Almost surely, 2^16042432769 is an apocalyptic number.

It is an amenable number.

16042432769 is a deficient number, since it is larger than the sum of its proper divisors (1832548579).

16042432769 is a wasteful number, since it uses less digits than its factorization.

16042432769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816288 (or 1816277 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 16042432769 in words is "sixteen billion, forty-two million, four hundred thirty-two thousand, seven hundred sixty-nine".