16409836231 has 4 divisors (see below), whose sum is σ = 16465842792. Its totient is φ = 16353829672.

The previous prime is 16409836207. The next prime is 16409836283. The reversal of 16409836231 is 13263890461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13263890461 = 115079 ⋅115259.

It is a cyclic number.

It is not a de Polignac number, because 16409836231 - 2¹⁵ = 16409803463 is a prime.

It is a super-2 number, since 2×16409836231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16409836831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28002841 + ... + 28003426.

It is an arithmetic number, because the mean of its divisors is an integer number (4116460698).

Almost surely, 2^16409836231 is an apocalyptic number.

16409836231 is a deficient number, since it is larger than the sum of its proper divisors (56006561).

16409836231 is an equidigital number, since it uses as much as digits as its factorization.

16409836231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56006560.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 16409836231 in words is "sixteen billion, four hundred nine million, eight hundred thirty-six thousand, two hundred thirty-one".