6664455061 has 12 divisors (see below), whose sum is σ = 7495756576. Its totient is φ = 5917693320.

The previous prime is 6664455053. The next prime is 6664455071. The reversal of 6664455061 is 1605544666.

It is not a de Polignac number, because 6664455061 - 2³ = 6664455053 is a prime.

It is a super-2 number, since 2×6664455061² = 88829922520177027442, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 6664454999 and 6664455017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664455071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635241 + ... + 645646.

Almost surely, 2^6664455061 is an apocalyptic number.

It is an amenable number.

6664455061 is a deficient number, since it is larger than the sum of its proper divisors (831301515).

6664455061 is a wasteful number, since it uses less digits than its factorization.

6664455061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280952 (or 1280941 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 6664455061 is about 81636.1137058839. The cubic root of 6664455061 is about 1881.8639146824.

The spelling of 6664455061 in words is "six billion, six hundred sixty-four million, four hundred fifty-five thousand, sixty-one".