6500661163 has 4 divisors (see below), whose sum is σ = 6505590960. Its totient is φ = 6495731368.

The previous prime is 6500661149. The next prime is 6500661173. The reversal of 6500661163 is 3611660056.

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 6500661163 - 2¹³ = 6500652971 is a prime.

It is a super-2 number, since 2×6500661163² = 84517191112273025138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6500661113) 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, 2462920 + ... + 2465557.

It is an arithmetic number, because the mean of its divisors is an integer number (1626397740).

Almost surely, 2^6500661163 is an apocalyptic number.

6500661163 is a deficient number, since it is larger than the sum of its proper divisors (4929797).

6500661163 is a wasteful number, since it uses less digits than its factorization.

6500661163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929796.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 6500661163 is about 80626.6777375826. The cubic root of 6500661163 is about 1866.3188531421.

The spelling of 6500661163 in words is "six billion, five hundred million, six hundred sixty-one thousand, one hundred sixty-three".