13166643107 has 2 divisors, whose sum is σ = 13166643108. Its totient is φ = 13166643106.

The previous prime is 13166643041. The next prime is 13166643131. The reversal of 13166643107 is 70134666131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13166643107 - 2¹² = 13166639011 is a prime.

It is a super-2 number, since 2×13166643107² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13166643167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6583321553 + 6583321554.

It is an arithmetic number, because the mean of its divisors is an integer number (6583321554).

Almost surely, 2^13166643107 is an apocalyptic number.

13166643107 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166643107 is an equidigital number, since it uses as much as digits as its factorization.

13166643107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 13166643107 in words is "thirteen billion, one hundred sixty-six million, six hundred forty-three thousand, one hundred seven".