2660013643 has 16 divisors (see below), whose sum is σ = 3107819520. Its totient is φ = 2229566400.

The previous prime is 2660013617. The next prime is 2660013667. The reversal of 2660013643 is 3463100662.

2660013643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660013643 is a prime.

It is a super-2 number, since 2×2660013643² = 14151345161892262898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660013673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62023 + ... + 95743.

It is an arithmetic number, because the mean of its divisors is an integer number (194238720).

Almost surely, 2^2660013643 is an apocalyptic number.

2660013643 is a deficient number, since it is larger than the sum of its proper divisors (447805877).

2660013643 is a wasteful number, since it uses less digits than its factorization.

2660013643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33978.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 2660013643 is about 51575.3200959529. The cubic root of 2660013643 is about 1385.5683510635.

The spelling of 2660013643 in words is "two billion, six hundred sixty million, thirteen thousand, six hundred forty-three".