6651883963 has 4 divisors (see below), whose sum is σ = 6652640848. Its totient is φ = 6651127080.

The previous prime is 6651883957. The next prime is 6651883991. The reversal of 6651883963 is 3693881566.

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

It is a cyclic number.

It is not a de Polignac number, because 6651883963 - 2¹³ = 6651875771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6651883933) 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, 365103 + ... + 382888.

It is an arithmetic number, because the mean of its divisors is an integer number (1663160212).

Almost surely, 2^6651883963 is an apocalyptic number.

6651883963 is a deficient number, since it is larger than the sum of its proper divisors (756885).

6651883963 is an equidigital number, since it uses as much as digits as its factorization.

6651883963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756884.

The product of its digits is 5598720, while the sum is 55.

The square root of 6651883963 is about 81559.0826517807. The cubic root of 6651883963 is about 1880.6799226029.

The spelling of 6651883963 in words is "six billion, six hundred fifty-one million, eight hundred eighty-three thousand, nine hundred sixty-three".