6465664554 has 16 divisors (see below), whose sum is σ = 12934667520. Its totient is φ = 2154665120.

The previous prime is 6465664537. The next prime is 6465664571. The reversal of 6465664554 is 4554665646.

It is an interprime number because it is at equal distance from previous prime (6465664537) and next prime (6465664571).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6465664497 and 6465664506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113562 + ... + 160709.

It is an arithmetic number, because the mean of its divisors is an integer number (808416720).

Almost surely, 2^6465664554 is an apocalyptic number.

6465664554 is an abundant number, since it is smaller than the sum of its proper divisors (6469002966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6465664554 is a wasteful number, since it uses less digits than its factorization.

6465664554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278205.

The product of its digits is 10368000, while the sum is 51.

The square root of 6465664554 is about 80409.3561347186. The cubic root of 6465664554 is about 1862.9636871666.

The spelling of 6465664554 in words is "six billion, four hundred sixty-five million, six hundred sixty-four thousand, five hundred fifty-four".