13155877664 has 24 divisors (see below), whose sum is σ = 26008120908. Its totient is φ = 6550640640.

The previous prime is 13155877627. The next prime is 13155877673. The reversal of 13155877664 is 46677855131.

It can be written as a sum of positive squares in 2 ways, for example, as 10963765264 + 2192112400 = 104708^2 + 46820^2 .

It is a super-2 number, since 2×13155877664² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 845237 + ... + 860660.

Almost surely, 2^13155877664 is an apocalyptic number.

It is an amenable number.

13155877664 is a deficient number, since it is larger than the sum of its proper divisors (12852243244).

13155877664 is a wasteful number, since it uses less digits than its factorization.

13155877664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706148 (or 1706140 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 53.

The spelling of 13155877664 in words is "thirteen billion, one hundred fifty-five million, eight hundred seventy-seven thousand, six hundred sixty-four".