13166641551 has 16 divisors (see below), whose sum is σ = 20066630400. Its totient is φ = 7522603968.

The previous prime is 13166641531. The next prime is 13166641589. The reversal of 13166641551 is 15514666131.

It is not a de Polignac number, because 13166641551 - 2⁵ = 13166641519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13166641531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96115 + ... + 188603.

It is an arithmetic number, because the mean of its divisors is an integer number (1254164400).

Almost surely, 2^13166641551 is an apocalyptic number.

13166641551 is a deficient number, since it is larger than the sum of its proper divisors (6899988849).

13166641551 is an equidigital number, since it uses as much as digits as its factorization.

13166641551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99278.

The product of its digits is 64800, while the sum is 39.

The spelling of 13166641551 in words is "thirteen billion, one hundred sixty-six million, six hundred forty-one thousand, five hundred fifty-one".