13155250034240 has 28 divisors (see below), whose sum is σ = 31325939144796. Its totient is φ = 5262100013568.

The previous prime is 13155250034221. The next prime is 13155250034263. The reversal of 13155250034240 is 4243005255131.

It can be written as a sum of positive squares in 2 ways, for example, as 4480198755904 + 8675051278336 = 2116648^2 + 2945344^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13155250034240.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20555077859 + ... + 20555078498.

Almost surely, 2^{13155250034240} is an apocalyptic number.

13155250034240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155250034240 is an abundant number, since it is smaller than the sum of its proper divisors (18170689110556).

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

13155250034240 is an equidigital number, since it uses as much as digits as its factorization.

13155250034240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41110156374 (or 41110156364 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 13155250034240 its reverse (4243005255131), we get a palindrome (17398255289371).

The spelling of 13155250034240 in words is "thirteen trillion, one hundred fifty-five billion, two hundred fifty million, thirty-four thousand, two hundred forty".