6431664201 has 8 divisors (see below), whose sum is σ = 8579786880. Its totient is φ = 4285658832.

The previous prime is 6431664199. The next prime is 6431664203. The reversal of 6431664201 is 1024661346.

It is an interprime number because it is at equal distance from previous prime (6431664199) and next prime (6431664203).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6431664201 - 2¹ = 6431664199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6431664203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522225 + ... + 534398.

It is an arithmetic number, because the mean of its divisors is an integer number (1072473360).

Almost surely, 2^6431664201 is an apocalyptic number.

It is an amenable number.

6431664201 is a deficient number, since it is larger than the sum of its proper divisors (2148122679).

6431664201 is a wasteful number, since it uses less digits than its factorization.

6431664201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058655.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6431664201 is about 80197.6570792439. The cubic root of 6431664201 is about 1859.6924184998.

The spelling of 6431664201 in words is "six billion, four hundred thirty-one million, six hundred sixty-four thousand, two hundred one".