6366526641 has 8 divisors (see below), whose sum is σ = 9431891360. Its totient is φ = 4244351076.

The previous prime is 6366526597. The next prime is 6366526667. The reversal of 6366526641 is 1466256636.

6366526641 is a `hidden beast` number, since 6 + 3 + 66 + 526 + 64 + 1 = 666.

It is not a de Polignac number, because 6366526641 - 2¹⁰ = 6366525617 is a prime.

It is a super-2 number, since 2×6366526641² = 81065322941125485762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6366566641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117898615 + ... + 117898668.

It is an arithmetic number, because the mean of its divisors is an integer number (1178986420).

Almost surely, 2^6366526641 is an apocalyptic number.

It is an amenable number.

6366526641 is a deficient number, since it is larger than the sum of its proper divisors (3065364719).

6366526641 is a wasteful number, since it uses less digits than its factorization.

6366526641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235797292 (or 235797286 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 6366526641 is about 79790.5172373259. The cubic root of 6366526641 is about 1853.3930077967.

The spelling of 6366526641 in words is "six billion, three hundred sixty-six million, five hundred twenty-six thousand, six hundred forty-one".