6560157643 has 4 divisors (see below), whose sum is σ = 7064785168. Its totient is φ = 6055530120.

The previous prime is 6560157631. The next prime is 6560157649. The reversal of 6560157643 is 3467510656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6560157643 is a prime.

It is a super-2 number, since 2×6560157643² = 86071336602022630898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6560157643.

It is not an unprimeable number, because it can be changed into a prime (6560157649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252313743 + ... + 252313768.

It is an arithmetic number, because the mean of its divisors is an integer number (1766196292).

Almost surely, 2^6560157643 is an apocalyptic number.

6560157643 is a deficient number, since it is larger than the sum of its proper divisors (504627525).

6560157643 is a wasteful number, since it uses less digits than its factorization.

6560157643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504627524.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 6560157643 is about 80994.8000985248. The cubic root of 6560157643 is about 1871.9953196603.

The spelling of 6560157643 in words is "six billion, five hundred sixty million, one hundred fifty-seven thousand, six hundred forty-three".