16464022452 has 72 divisors (see below), whose sum is σ = 42421579200. Its totient is φ = 5382396288.

The previous prime is 16464022451. The next prime is 16464022457. The reversal of 16464022452 is 25422046461.

16464022452 is a `hidden beast` number, since 1 + 6 + 4 + 6 + 402 + 245 + 2 = 666.

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 (16464022451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 923608 + ... + 941264.

It is an arithmetic number, because the mean of its divisors is an integer number (589188600).

Almost surely, 2^16464022452 is an apocalyptic number.

16464022452 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 16464022452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21210789600).

16464022452 is an abundant number, since it is smaller than the sum of its proper divisors (25957556748).

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

16464022452 is a wasteful number, since it uses less digits than its factorization.

16464022452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18165 (or 18160 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 16464022452 in words is "sixteen billion, four hundred sixty-four million, twenty-two thousand, four hundred fifty-two".