13166033134553 has 8 divisors (see below), whose sum is σ = 14203378240968. Its totient is φ = 12132198503424.

The previous prime is 13166033134549. The next prime is 13166033134561. The reversal of 13166033134553 is 35543133066131.

It can be written as a sum of positive squares in 4 ways, for example, as 1816060797769 + 11349972336784 = 1347613^2 + 3368972^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13166033134553 - 2² = 13166033134549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13166033134753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877611026 + ... + 877626027.

It is an arithmetic number, because the mean of its divisors is an integer number (1775422280121).

Almost surely, 2^{13166033134553} is an apocalyptic number.

13166033134553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13166033134553 is a deficient number, since it is larger than the sum of its proper divisors (1037345106415).

13166033134553 is a wasteful number, since it uses less digits than its factorization.

13166033134553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755237643.

The product of its (nonzero) digits is 874800, while the sum is 44.

The spelling of 13166033134553 in words is "thirteen trillion, one hundred sixty-six billion, thirty-three million, one hundred thirty-four thousand, five hundred fifty-three".