6155144745344 has 128 divisors (see below), whose sum is σ = 14765225978880. Its totient is φ = 2498728826880.

The previous prime is 6155144745317. The next prime is 6155144745349. The reversal of 6155144745344 is 4435474415516.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×6155144745344² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6155144745349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 672734 + ... + 3572514.

It is an arithmetic number, because the mean of its divisors is an integer number (115353327960).

Almost surely, 2^{6155144745344} is an apocalyptic number.

6155144745344 is a gapful number since it is divisible by the number (64) 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 6155144745344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7382612989440).

6155144745344 is an abundant number, since it is smaller than the sum of its proper divisors (8610081233536).

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

6155144745344 is a wasteful number, since it uses less digits than its factorization.

6155144745344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899928 (or 2899916 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 53.

The spelling of 6155144745344 in words is "six trillion, one hundred fifty-five billion, one hundred forty-four million, seven hundred forty-five thousand, three hundred forty-four".