13625172816 has 20 divisors (see below), whose sum is σ = 35198363232. Its totient is φ = 4541724256.

The previous prime is 13625172811. The next prime is 13625172833. The reversal of 13625172816 is 61827152631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13625172811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141928836 + ... + 141928931.

Almost surely, 2^13625172816 is an apocalyptic number.

13625172816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13625172816 is an abundant number, since it is smaller than the sum of its proper divisors (21573190416).

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

13625172816 is a wasteful number, since it uses less digits than its factorization.

13625172816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283857778 (or 283857772 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The spelling of 13625172816 in words is "thirteen billion, six hundred twenty-five million, one hundred seventy-two thousand, eight hundred sixteen".