2153661325344 has 168 divisors, whose sum is σ = 6633521298432. Its totient is φ = 686674454400.

The previous prime is 2153661325337. The next prime is 2153661325363. The reversal of 2153661325344 is 4435231663512.

2153661325344 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 6 + 613 + 25 + 3 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2153661325344.

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 27 ways as a sum of consecutive naturals, for example, 1470432 + ... + 2543519.

It is an arithmetic number, because the mean of its divisors is an integer number (39485245824).

Almost surely, 2^{2153661325344} is an apocalyptic number.

2153661325344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2153661325344 is an abundant number, since it is smaller than the sum of its proper divisors (4479859973088).

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

2153661325344 is an equidigital number, since it uses as much as digits as its factorization.

2153661325344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014002 (or 4013979 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

Adding to 2153661325344 its reverse (4435231663512), we get a palindrome (6588892988856).

The spelling of 2153661325344 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-one million, three hundred twenty-five thousand, three hundred forty-four".