2253601156440 has 128 divisors (see below), whose sum is σ = 6848812051200. Its totient is φ = 593187325440.

The previous prime is 2253601156423. The next prime is 2253601156441. The reversal of 2253601156440 is 446511063522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2253601156441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2495155 + ... + 3276125.

It is an arithmetic number, because the mean of its divisors is an integer number (53506344150).

Almost surely, 2^{2253601156440} is an apocalyptic number.

2253601156440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2253601156440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3424406025600).

2253601156440 is an abundant number, since it is smaller than the sum of its proper divisors (4595210894760).

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

2253601156440 is a wasteful number, since it uses less digits than its factorization.

2253601156440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781297 (or 781293 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 2253601156440 in words is "two trillion, two hundred fifty-three billion, six hundred one million, one hundred fifty-six thousand, four hundred forty".