16531036256 has 48 divisors (see below), whose sum is σ = 37232203680. Its totient is φ = 7077611520.

The previous prime is 16531036237. The next prime is 16531036259. The reversal of 16531036256 is 65263013561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16531036259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189446 + ... + 262586.

It is an arithmetic number, because the mean of its divisors is an integer number (775670910).

Almost surely, 2^16531036256 is an apocalyptic number.

16531036256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16531036256 is an abundant number, since it is smaller than the sum of its proper divisors (20701167424).

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

16531036256 is a wasteful number, since it uses less digits than its factorization.

16531036256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74167 (or 74159 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 16531036256 in words is "sixteen billion, five hundred thirty-one million, thirty-six thousand, two hundred fifty-six".