13156554445 has 8 divisors (see below), whose sum is σ = 15816213144. Its totient is φ = 10506345024.

The previous prime is 13156554431. The next prime is 13156554457. The reversal of 13156554445 is 54445565131.

It can be written as a sum of positive squares in 4 ways, for example, as 45846441 + 13110708004 = 6771^2 + 114502^2 .

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 13156554445 - 2⁵ = 13156554413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359254 + ... + 2364823.

It is an arithmetic number, because the mean of its divisors is an integer number (1977026643).

Almost surely, 2^13156554445 is an apocalyptic number.

It is an amenable number.

13156554445 is a deficient number, since it is larger than the sum of its proper divisors (2659658699).

13156554445 is an equidigital number, since it uses as much as digits as its factorization.

13156554445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4724639.

The product of its digits is 720000, while the sum is 43.

The spelling of 13156554445 in words is "thirteen billion, one hundred fifty-six million, five hundred fifty-four thousand, four hundred forty-five".