16231553316 has 36 divisors (see below), whose sum is σ = 44759739024. Its totient is φ = 4918652400.

The previous prime is 16231553309. The next prime is 16231553321. The reversal of 16231553316 is 61335513261.

16231553316 is a `hidden beast` number, since 1 + 6 + 2 + 315 + 5 + 331 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20493990 + ... + 20494781.

It is an arithmetic number, because the mean of its divisors is an integer number (1243326084).

Almost surely, 2^16231553316 is an apocalyptic number.

It is an amenable number.

16231553316 is an abundant number, since it is smaller than the sum of its proper divisors (28528185708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16231553316 is a wasteful number, since it uses less digits than its factorization.

16231553316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40988792 (or 40988787 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 16231553316 in words is "sixteen billion, two hundred thirty-one million, five hundred fifty-three thousand, three hundred sixteen".