16452263520 has 1296 divisors, whose sum is σ = 75102116544. Its totient is φ = 3264307200.

The previous prime is 16452263467. The next prime is 16452263521. The reversal of 16452263520 is 2536225461.

16452263520 is a `hidden beast` number, since 1 + 64 + 52 + 26 + 3 + 520 = 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 (16452263521) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 350048137 + ... + 350048183.

It is an arithmetic number, because the mean of its divisors is an integer number (57949164).

Almost surely, 2^16452263520 is an apocalyptic number.

16452263520 is a gapful number since it is divisible by the number (10) 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 16452263520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37551058272).

16452263520 is an abundant number, since it is smaller than the sum of its proper divisors (58649853024).

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

16452263520 is a wasteful number, since it uses less digits than its factorization.

16452263520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 16452263520 its reverse (2536225461), we get a palindrome (18988488981).

It can be divided in two parts, 16452 and 263520, that added together give a palindrome (279972).

The spelling of 16452263520 in words is "sixteen billion, four hundred fifty-two million, two hundred sixty-three thousand, five hundred twenty".