6641225263 has 4 divisors (see below), whose sum is σ = 6855458368. Its totient is φ = 6426992160.

The previous prime is 6641225231. The next prime is 6641225291. The reversal of 6641225263 is 3625221466.

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 6641225263 - 2⁵ = 6641225231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641225293) 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, 107116506 + ... + 107116567.

It is an arithmetic number, because the mean of its divisors is an integer number (1713864592).

Almost surely, 2^6641225263 is an apocalyptic number.

6641225263 is a deficient number, since it is larger than the sum of its proper divisors (214233105).

6641225263 is a wasteful number, since it uses less digits than its factorization.

6641225263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214233104.

The product of its digits is 103680, while the sum is 37.

The square root of 6641225263 is about 81493.7130274477. The cubic root of 6641225263 is about 1879.6748780427.

The spelling of 6641225263 in words is "six billion, six hundred forty-one million, two hundred twenty-five thousand, two hundred sixty-three".