13166641616 has 20 divisors (see below), whose sum is σ = 25758044832. Its totient is φ = 6519404256.

The previous prime is 13166641597. The next prime is 13166641619. The reversal of 13166641616 is 61614666131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13166641619) 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, 3993086 + ... + 3996381.

Almost surely, 2^13166641616 is an apocalyptic number.

13166641616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13166641616 is a deficient number, since it is larger than the sum of its proper divisors (12591403216).

13166641616 is a wasteful number, since it uses less digits than its factorization.

13166641616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989578 (or 7989572 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The spelling of 13166641616 in words is "thirteen billion, one hundred sixty-six million, six hundred forty-one thousand, six hundred sixteen".