6465491158 has 8 divisors (see below), whose sum is σ = 11083699152. Its totient is φ = 2770924776.

The previous prime is 6465491143. The next prime is 6465491191. The reversal of 6465491158 is 8511945646.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230910385 + ... + 230910412.

It is an arithmetic number, because the mean of its divisors is an integer number (1385462394).

Almost surely, 2^6465491158 is an apocalyptic number.

6465491158 is a deficient number, since it is larger than the sum of its proper divisors (4618207994).

6465491158 is a wasteful number, since it uses less digits than its factorization.

6465491158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461820806.

The product of its digits is 1036800, while the sum is 49.

The square root of 6465491158 is about 80408.2779196272. The cubic root of 6465491158 is about 1862.9470333827.

The spelling of 6465491158 in words is "six billion, four hundred sixty-five million, four hundred ninety-one thousand, one hundred fifty-eight".