2115459532144 has 120 divisors (see below), whose sum is σ = 4989111911520. Its totient is φ = 851026715136.

The previous prime is 2115459532141. The next prime is 2115459532171. The reversal of 2115459532144 is 4412359545112.

It is a super-2 number, since 2×2115459532144² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2115459532094 and 2115459532103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115459532141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4167082 + ... + 4647094.

It is an arithmetic number, because the mean of its divisors is an integer number (41575932596).

Almost surely, 2^{2115459532144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115459532144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2494555955760).

2115459532144 is an abundant number, since it is smaller than the sum of its proper divisors (2873652379376).

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

2115459532144 is a wasteful number, since it uses less digits than its factorization.

2115459532144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480175 (or 480150 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

The spelling of 2115459532144 in words is "two trillion, one hundred fifteen billion, four hundred fifty-nine million, five hundred thirty-two thousand, one hundred forty-four".