6465631001 has 2 divisors, whose sum is σ = 6465631002. Its totient is φ = 6465631000.

The previous prime is 6465630979. The next prime is 6465631021. The reversal of 6465631001 is 1001365646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5610010000 + 855621001 = 74900^2 + 29251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6465631001 is a prime.

It is not a weakly prime, because it can be changed into another prime (6465631021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232815500 + 3232815501.

It is an arithmetic number, because the mean of its divisors is an integer number (3232815501).

Almost surely, 2^6465631001 is an apocalyptic number.

It is an amenable number.

6465631001 is a deficient number, since it is larger than the sum of its proper divisors (1).

6465631001 is an equidigital number, since it uses as much as digits as its factorization.

6465631001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 6465631001 is about 80409.1474957918. The cubic root of 6465631001 is about 1862.9604645987.

Adding to 6465631001 its reverse (1001365646), we get a palindrome (7466996647).

The spelling of 6465631001 in words is "six billion, four hundred sixty-five million, six hundred thirty-one thousand, one".