16261532316 has 18 divisors (see below), whose sum is σ = 41105540112. Its totient is φ = 5420510760.

The previous prime is 16261532293. The next prime is 16261532333. The reversal of 16261532316 is 61323516261.

16261532316 is a `hidden beast` number, since 1 + 6 + 2 + 615 + 3 + 2 + 31 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 451709231 = 16261532316 / (1 + 6 + 2 + 6 + 1 + 5 + 3 + 2 + 3 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225854580 + ... + 225854651.

Almost surely, 2^16261532316 is an apocalyptic number.

It is an amenable number.

16261532316 is an abundant number, since it is smaller than the sum of its proper divisors (24844007796).

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

16261532316 is a wasteful number, since it uses less digits than its factorization.

16261532316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451709241 (or 451709236 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The spelling of 16261532316 in words is "sixteen billion, two hundred sixty-one million, five hundred thirty-two thousand, three hundred sixteen".