6866556963 has 8 divisors (see below), whose sum is σ = 10463324928. Its totient is φ = 3923746824.

The previous prime is 6866556929. The next prime is 6866556967. The reversal of 6866556963 is 3696556686.

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

It is not a de Polignac number, because 6866556963 - 2¹² = 6866552867 is a prime.

It is a super-2 number, since 2×6866556963² = 94299209052247566738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6866556897 and 6866556906.

It is not an unprimeable number, because it can be changed into a prime (6866556967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163489431 + ... + 163489472.

It is an arithmetic number, because the mean of its divisors is an integer number (1307915616).

Almost surely, 2^6866556963 is an apocalyptic number.

6866556963 is a deficient number, since it is larger than the sum of its proper divisors (3596767965).

6866556963 is a wasteful number, since it uses less digits than its factorization.

6866556963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326978913.

The product of its digits is 41990400, while the sum is 60.

The square root of 6866556963 is about 82864.6906890987. The cubic root of 6866556963 is about 1900.6975244119.

The spelling of 6866556963 in words is "six billion, eight hundred sixty-six million, five hundred fifty-six thousand, nine hundred sixty-three".