2115618346944 has 140 divisors (see below), whose sum is σ = 6272053220664. Its totient is φ = 705127666176.

The previous prime is 2115618346943. The next prime is 2115618346951. The reversal of 2115618346944 is 4496438165112.

2115618346944 is a `hidden beast` number, since 2 + 1 + 1 + 5 + 61 + 83 + 469 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115618346943) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63990322 + ... + 64023374.

Almost surely, 2^{2115618346944} is an apocalyptic number.

2115618346944 is a gapful number since it is divisible by the number (24) 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 2115618346944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3136026610332).

2115618346944 is an abundant number, since it is smaller than the sum of its proper divisors (4156434873720).

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

2115618346944 is a wasteful number, since it uses less digits than its factorization.

2115618346944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45424 (or 45405 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 2115618346944 in words is "two trillion, one hundred fifteen billion, six hundred eighteen million, three hundred forty-six thousand, nine hundred forty-four".