6465670999 has 2 divisors, whose sum is σ = 6465671000. Its totient is φ = 6465670998.

The previous prime is 6465670997. The next prime is 6465671053. The reversal of 6465670999 is 9990765646.

6465670999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6465670999 - 2¹ = 6465670997 is a prime.

Together with 6465670997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6465670997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232835499 + 3232835500.

It is an arithmetic number, because the mean of its divisors is an integer number (3232835500).

Almost surely, 2^6465670999 is an apocalyptic number.

6465670999 is a deficient number, since it is larger than the sum of its proper divisors (1).

6465670999 is an equidigital number, since it uses as much as digits as its factorization.

6465670999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22044960, while the sum is 61.

The square root of 6465670999 is about 80409.3962108907. The cubic root of 6465670999 is about 1862.9643061696.

The spelling of 6465670999 in words is "six billion, four hundred sixty-five million, six hundred seventy thousand, nine hundred ninety-nine".