16432274925 has 144 divisors (see below), whose sum is σ = 34930056000. Its totient is φ = 7547126400.

The previous prime is 16432274917. The next prime is 16432274927. The reversal of 16432274925 is 52947223461.

It is not a de Polignac number, because 16432274925 - 2³ = 16432274917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16432274927) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1546531 + ... + 1557119.

Almost surely, 2^16432274925 is an apocalyptic number.

16432274925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16432274925 is an abundant number, since it is smaller than the sum of its proper divisors (18497781075).

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

16432274925 is a wasteful number, since it uses less digits than its factorization.

16432274925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649 (or 10627 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 16432274925 in words is "sixteen billion, four hundred thirty-two million, two hundred seventy-four thousand, nine hundred twenty-five".