16415136425 has 12 divisors (see below), whose sum is σ = 20359173120. Its totient is φ = 13129267920.

The previous prime is 16415136407. The next prime is 16415136427. The reversal of 16415136425 is 52463151461.

It is not a de Polignac number, because 16415136425 - 2³² = 12120169129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16415136427) 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, 50936 + ... + 188214.

It is an arithmetic number, because the mean of its divisors is an integer number (1696597760).

Almost surely, 2^16415136425 is an apocalyptic number.

It is an amenable number.

16415136425 is a deficient number, since it is larger than the sum of its proper divisors (3944036695).

16415136425 is a wasteful number, since it uses less digits than its factorization.

16415136425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142072 (or 142067 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

Adding to 16415136425 its reverse (52463151461), we get a palindrome (68878287886).

The spelling of 16415136425 in words is "sixteen billion, four hundred fifteen million, one hundred thirty-six thousand, four hundred twenty-five".