16522313472 has 288 divisors, whose sum is σ = 56069045760. Its totient is φ = 4701265920.

The previous prime is 16522313471. The next prime is 16522313473. The reversal of 16522313472 is 27431322561.

16522313472 is a `hidden beast` number, since 1 + 6 + 522 + 31 + 34 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (16522313471) and next prime (16522313473).

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16522313471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15143647 + ... + 15144737.

Almost surely, 2^16522313472 is an apocalyptic number.

16522313472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16522313472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28034522880).

16522313472 is an abundant number, since it is smaller than the sum of its proper divisors (39546732288).

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

16522313472 is a wasteful number, since it uses less digits than its factorization.

16522313472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 1416 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The spelling of 16522313472 in words is "sixteen billion, five hundred twenty-two million, three hundred thirteen thousand, four hundred seventy-two".