2180015317344 has 48 divisors (see below), whose sum is σ = 5729943430512. Its totient is φ = 725731680768.

The previous prime is 2180015317327. The next prime is 2180015317349. The reversal of 2180015317344 is 4437135100812.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2180015317344² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180015317349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14614339 + ... + 14762754.

It is an arithmetic number, because the mean of its divisors is an integer number (119373821469).

Almost surely, 2^{2180015317344} is an apocalyptic number.

2180015317344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2180015317344 is an abundant number, since it is smaller than the sum of its proper divisors (3549928113168).

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

2180015317344 is a wasteful number, since it uses less digits than its factorization.

2180015317344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29377879 (or 29377871 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 2180015317344 in words is "two trillion, one hundred eighty billion, fifteen million, three hundred seventeen thousand, three hundred forty-four".