13166669534 has 4 divisors (see below), whose sum is σ = 19750004304. Its totient is φ = 6583334766.

The previous prime is 13166669513. The next prime is 13166669543. The reversal of 13166669534 is 43596666131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43596666131 = 239 ⋅182412829.

It is a super-2 number, since 2×13166669534² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3291667382 + ... + 3291667385.

It is an arithmetic number, because the mean of its divisors is an integer number (4937501076).

Almost surely, 2^13166669534 is an apocalyptic number.

13166669534 is a deficient number, since it is larger than the sum of its proper divisors (6583334770).

13166669534 is an equidigital number, since it uses as much as digits as its factorization.

13166669534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583334769.

The product of its digits is 2099520, while the sum is 50.

The spelling of 13166669534 in words is "thirteen billion, one hundred sixty-six million, six hundred sixty-nine thousand, five hundred thirty-four".