16253400120 has 128 divisors (see below), whose sum is σ = 51681499200. Its totient is φ = 4075094016.

The previous prime is 16253400101. The next prime is 16253400151. The reversal of 16253400120 is 2100435261.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2299632 + ... + 2306688.

Almost surely, 2^16253400120 is an apocalyptic number.

16253400120 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 16253400120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25840749600).

16253400120 is an abundant number, since it is smaller than the sum of its proper divisors (35428099080).

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

16253400120 is a wasteful number, since it uses less digits than its factorization.

16253400120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217 (or 8213 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 16253400120 its reverse (2100435261), we get a palindrome (18353835381).

The spelling of 16253400120 in words is "sixteen billion, two hundred fifty-three million, four hundred thousand, one hundred twenty".