13255801578 has 32 divisors (see below), whose sum is σ = 31190123520. Its totient is φ = 4158682560.

The previous prime is 13255801567. The next prime is 13255801589. The reversal of 13255801578 is 87510855231.

13255801578 is a `hidden beast` number, since 1 + 3 + 25 + 58 + 0 + 1 + 578 = 666.

It is an interprime number because it is at equal distance from previous prime (13255801567) and next prime (13255801589).

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 in 15 ways as a sum of consecutive naturals, for example, 7219018 + ... + 7220853.

It is an arithmetic number, because the mean of its divisors is an integer number (974691360).

Almost surely, 2^13255801578 is an apocalyptic number.

13255801578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13255801578 is an abundant number, since it is smaller than the sum of its proper divisors (17934321942).

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

13255801578 is a wasteful number, since it uses less digits than its factorization.

13255801578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14439899 (or 14439893 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The spelling of 13255801578 in words is "thirteen billion, two hundred fifty-five million, eight hundred one thousand, five hundred seventy-eight".