6624669567 has 4 divisors (see below), whose sum is σ = 8832892760. Its totient is φ = 4416446376.

The previous prime is 6624669559. The next prime is 6624669577. The reversal of 6624669567 is 7659664266.

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

It is not a de Polignac number, because 6624669567 - 2³ = 6624669559 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 (6624669517) 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, 1104111592 + ... + 1104111597.

It is an arithmetic number, because the mean of its divisors is an integer number (2208223190).

Almost surely, 2^6624669567 is an apocalyptic number.

6624669567 is a deficient number, since it is larger than the sum of its proper divisors (2208223193).

6624669567 is a wasteful number, since it uses less digits than its factorization.

6624669567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208223192.

The product of its digits is 19595520, while the sum is 57.

The square root of 6624669567 is about 81392.0731214042. The cubic root of 6624669567 is about 1878.1116514148. Note that the first 3 decimals are identical.

The spelling of 6624669567 in words is "six billion, six hundred twenty-four million, six hundred sixty-nine thousand, five hundred sixty-seven".