13155262440 has 64 divisors (see below), whose sum is σ = 40112789760. Its totient is φ = 3450558720.

The previous prime is 13155262433. The next prime is 13155262441. The reversal of 13155262440 is 4426255131.

13155262440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13155262441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891264 + ... + 905903.

It is an arithmetic number, because the mean of its divisors is an integer number (626762340).

Almost surely, 2^13155262440 is an apocalyptic number.

13155262440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155262440 is an abundant number, since it is smaller than the sum of its proper divisors (26957527320).

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

13155262440 is a wasteful number, since it uses less digits than its factorization.

13155262440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797242 (or 1797238 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 13155262440 in words is "thirteen billion, one hundred fifty-five million, two hundred sixty-two thousand, four hundred forty".