6266666643 has 8 divisors (see below), whose sum is σ = 8399302656. Its totient is φ = 4155904200.

The previous prime is 6266666639. The next prime is 6266666683. The reversal of 6266666643 is 3466666626.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6266666643 - 2² = 6266666639 is a prime.

It is a super-2 number, since 2×6266666643² = 78542221628977778898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6266666683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5467723 + ... + 5468868.

It is an arithmetic number, because the mean of its divisors is an integer number (1049912832).

Almost surely, 2^6266666643 is an apocalyptic number.

6266666643 is a deficient number, since it is larger than the sum of its proper divisors (2132636013).

6266666643 is a wasteful number, since it uses less digits than its factorization.

6266666643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10936785.

The product of its digits is 6718464, while the sum is 51.

The square root of 6266666643 is about 79162.2804307708. The cubic root of 6266666643 is about 1843.6516410645.

The spelling of 6266666643 in words is "six billion, two hundred sixty-six million, six hundred sixty-six thousand, six hundred forty-three".