16042432785 has 16 divisors (see below), whose sum is σ = 25932512256. Its totient is φ = 8467757568.

The previous prime is 16042432759. The next prime is 16042432837. The reversal of 16042432785 is 58723424061.

It is not a de Polignac number, because 16042432785 - 2⁸ = 16042432529 is a prime.

It is a super-2 number, since 2×16042432785² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5511409 + ... + 5514318.

It is an arithmetic number, because the mean of its divisors is an integer number (1620782016).

Almost surely, 2^16042432785 is an apocalyptic number.

16042432785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16042432785 is a deficient number, since it is larger than the sum of its proper divisors (9890079471).

16042432785 is a wasteful number, since it uses less digits than its factorization.

16042432785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11025832.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 16042432785 in words is "sixteen billion, forty-two million, four hundred thirty-two thousand, seven hundred eighty-five".