16453620032 has 84 divisors (see below), whose sum is σ = 35287707936. Its totient is φ = 7597201920.

The previous prime is 16453620031. The next prime is 16453620067. The reversal of 16453620032 is 23002635461.

It is a super-2 number, since 2×16453620032² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16453620031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1231307 + ... + 1244597.

Almost surely, 2^16453620032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16453620032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17643853968).

16453620032 is an abundant number, since it is smaller than the sum of its proper divisors (18834087904).

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

16453620032 is a wasteful number, since it uses less digits than its factorization.

16453620032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13384 (or 13345 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 16453620032 in words is "sixteen billion, four hundred fifty-three million, six hundred twenty thousand, thirty-two".