2660243516056 has 128 divisors (see below), whose sum is σ = 5857960642560. Its totient is φ = 1109124172800.

The previous prime is 2660243515961. The next prime is 2660243516057. The reversal of 2660243516056 is 6506153420662.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2660243515997 and 2660243516015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660243516057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115065810 + ... + 115088926.

It is an arithmetic number, because the mean of its divisors is an integer number (45765317520).

Almost surely, 2^{2660243516056} 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 2660243516056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2928980321280).

2660243516056 is an abundant number, since it is smaller than the sum of its proper divisors (3197717126504).

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

2660243516056 is a wasteful number, since it uses less digits than its factorization.

2660243516056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23585 (or 23581 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 2660243516056 in words is "two trillion, six hundred sixty billion, two hundred forty-three million, five hundred sixteen thousand, fifty-six".