16125323136 has 128 divisors (see below), whose sum is σ = 46310896800. Its totient is φ = 4941938688.

The previous prime is 16125323111. The next prime is 16125323167. The reversal of 16125323136 is 63132352161.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 16125323097 and 16125323106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276660 + ... + 1289228.

Almost surely, 2^16125323136 is an apocalyptic number.

16125323136 is a gapful number since it is divisible by the number (16) 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 16125323136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23155448400).

16125323136 is an abundant number, since it is smaller than the sum of its proper divisors (30185573664).

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

16125323136 is a wasteful number, since it uses less digits than its factorization.

16125323136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12856 (or 12844 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

Adding to 16125323136 its reverse (63132352161), we get a palindrome (79257675297).

The spelling of 16125323136 in words is "sixteen billion, one hundred twenty-five million, three hundred twenty-three thousand, one hundred thirty-six".