16263531312 has 80 divisors (see below), whose sum is σ = 48257625600. Its totient is φ = 4623353856.

The previous prime is 16263531301. The next prime is 16263531313. The reversal of 16263531312 is 21313536261.

It is not an unprimeable number, because it can be changed into a prime (16263531313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54753 + ... + 188480.

It is an arithmetic number, because the mean of its divisors is an integer number (603220320).

Almost surely, 2^16263531312 is an apocalyptic number.

16263531312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16263531312 is an abundant number, since it is smaller than the sum of its proper divisors (31994094288).

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

16263531312 is a wasteful number, since it uses less digits than its factorization.

16263531312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243450 (or 243444 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The spelling of 16263531312 in words is "sixteen billion, two hundred sixty-three million, five hundred thirty-one thousand, three hundred twelve".