6664813058 has 6 divisors (see below), whose sum is σ = 9997392771. Its totient is φ = 3332348802.

The previous prime is 6664813049. The next prime is 6664813081. The reversal of 6664813058 is 8503184666.

It can be written as a sum of positive squares in only one way, i.e., 3332406529 + 3332406529 = 57727^2 + 57727^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=57727.

It is a super-3 number, since 3×6664813058³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 86591 + ... + 144317.

Almost surely, 2^6664813058 is an apocalyptic number.

6664813058 is a deficient number, since it is larger than the sum of its proper divisors (3332579713).

6664813058 is an frugal number, since it uses more digits than its factorization.

6664813058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115456 (or 57729 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 6664813058 is about 81638.3063151117. The cubic root of 6664813058 is about 1881.8976103393.

The spelling of 6664813058 in words is "six billion, six hundred sixty-four million, eight hundred thirteen thousand, fifty-eight".