2155653550344 has 32 divisors (see below), whose sum is σ = 6159010144320. Its totient is φ = 615901014336.

The previous prime is 2155653550343. The next prime is 2155653550397. The reversal of 2155653550344 is 4430553565512.

It is a super-2 number, since 2×2155653550344² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2155653550293 and 2155653550302.

It is not an unprimeable number, because it can be changed into a prime (2155653550343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6415635399 + ... + 6415635734.

It is an arithmetic number, because the mean of its divisors is an integer number (192469067010).

Almost surely, 2^{2155653550344} is an apocalyptic number.

2155653550344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2155653550344 is an abundant number, since it is smaller than the sum of its proper divisors (4003356593976).

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

2155653550344 is a wasteful number, since it uses less digits than its factorization.

2155653550344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831271149 (or 12831271145 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 48.

The spelling of 2155653550344 in words is "two trillion, one hundred fifty-five billion, six hundred fifty-three million, five hundred fifty thousand, three hundred forty-four".