16263531132 has 12 divisors (see below), whose sum is σ = 37948239336. Its totient is φ = 5421177040.

The previous prime is 16263531107. The next prime is 16263531133. The reversal of 16263531132 is 23113536261.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 16263531093 and 16263531102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16263531133) 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, 677647119 + ... + 677647142.

It is an arithmetic number, because the mean of its divisors is an integer number (3162353278).

Almost surely, 2^16263531132 is an apocalyptic number.

16263531132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16263531132 is an abundant number, since it is smaller than the sum of its proper divisors (21684708204).

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

16263531132 is a wasteful number, since it uses less digits than its factorization.

16263531132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355294268 (or 1355294266 counting only the distinct ones).

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

The spelling of 16263531132 in words is "sixteen billion, two hundred sixty-three million, five hundred thirty-one thousand, one hundred thirty-two".