13155771328 has 42 divisors (see below), whose sum is σ = 29840916696. Its totient is φ = 5637147264.

The previous prime is 13155771313. The next prime is 13155771331. The reversal of 13155771328 is 82317755131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2425003 + ... + 2430421.

Almost surely, 2^13155771328 is an apocalyptic number.

It is an amenable number.

13155771328 is an abundant number, since it is smaller than the sum of its proper divisors (16685145368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13155771328 is an frugal number, since it uses more digits than its factorization.

13155771328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10857 (or 5428 counting only the distinct ones).

The product of its digits is 176400, while the sum is 43.

The spelling of 13155771328 in words is "thirteen billion, one hundred fifty-five million, seven hundred seventy-one thousand, three hundred twenty-eight".