6466530631 has 4 divisors (see below), whose sum is σ = 7054397064. Its totient is φ = 5878664200.

The previous prime is 6466530593. The next prime is 6466530643. The reversal of 6466530631 is 1360356646.

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 6466530631 - 2¹¹ = 6466528583 is a prime.

It is a super-2 number, since 2×6466530631² = 83632036803322516322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466530691) 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, 293933200 + ... + 293933221.

It is an arithmetic number, because the mean of its divisors is an integer number (1763599266).

Almost surely, 2^6466530631 is an apocalyptic number.

6466530631 is a deficient number, since it is larger than the sum of its proper divisors (587866433).

6466530631 is a wasteful number, since it uses less digits than its factorization.

6466530631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587866432.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 6466530631 is about 80414.7413786801. The cubic root of 6466530631 is about 1863.0468648998.

The spelling of 6466530631 in words is "six billion, four hundred sixty-six million, five hundred thirty thousand, six hundred thirty-one".