16253500000 has 84 divisors (see below), whose sum is σ = 39999566124. Its totient is φ = 6501200000.

The previous prime is 16253499967. The next prime is 16253500007. The reversal of 16253500000 is 535261.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16253500007) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 483747 + ... + 516253.

It is an arithmetic number, because the mean of its divisors is an integer number (476185311).

Almost surely, 2^16253500000 is an apocalyptic number.

16253500000 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 16253500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19999783062).

16253500000 is an abundant number, since it is smaller than the sum of its proper divisors (23746066124).

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

16253500000 is an frugal number, since it uses more digits than its factorization.

16253500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32547 (or 32514 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The spelling of 16253500000 in words is "sixteen billion, two hundred fifty-three million, five hundred thousand".