6650164431 has 12 divisors (see below), whose sum is σ = 10170839952. Its totient is φ = 4172652096.

The previous prime is 6650164421. The next prime is 6650164459. The reversal of 6650164431 is 1344610566.

It is a happy number.

6650164431 is a `hidden beast` number, since 6 + 6 + 5 + 0 + 1 + 644 + 3 + 1 = 666.

It is not a de Polignac number, because 6650164431 - 2¹⁰ = 6650163407 is a prime.

It is a super-2 number, since 2×6650164431² = 88449373918675107522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650164421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21732411 + ... + 21732716.

It is an arithmetic number, because the mean of its divisors is an integer number (847569996).

Almost surely, 2^6650164431 is an apocalyptic number.

6650164431 is a deficient number, since it is larger than the sum of its proper divisors (3520675521).

6650164431 is a wasteful number, since it uses less digits than its factorization.

6650164431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43465150 (or 43465147 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 6650164431 is about 81548.5403364156. The cubic root of 6650164431 is about 1880.5178548327.

Adding to 6650164431 its reverse (1344610566), we get a palindrome (7994774997).

The spelling of 6650164431 in words is "six billion, six hundred fifty million, one hundred sixty-four thousand, four hundred thirty-one".