16216110431 has 4 divisors (see below), whose sum is σ = 16219900872. Its totient is φ = 16212319992.

The previous prime is 16216110389. The next prime is 16216110437. The reversal of 16216110431 is 13401161261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13401161261 = 29 ⋅462109009.

It is a cyclic number.

It is not a de Polignac number, because 16216110431 - 2¹⁴ = 16216094047 is a prime.

It is a super-2 number, since 2×16216110431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16216110431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216110437) 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, 1888796 + ... + 1897361.

It is an arithmetic number, because the mean of its divisors is an integer number (4054975218).

Almost surely, 2^16216110431 is an apocalyptic number.

16216110431 is a deficient number, since it is larger than the sum of its proper divisors (3790441).

16216110431 is an equidigital number, since it uses as much as digits as its factorization.

16216110431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790440.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 16216110431 its reverse (13401161261), we get a palindrome (29617271692).

The spelling of 16216110431 in words is "sixteen billion, two hundred sixteen million, one hundred ten thousand, four hundred thirty-one".