5260866661 has 8 divisors (see below), whose sum is σ = 5672822400. Its totient is φ = 4862417760.

The previous prime is 5260866601. The next prime is 5260866673. The reversal of 5260866661 is 1666680625.

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

It is a cyclic number.

It is not a de Polignac number, because 5260866661 - 2¹³ = 5260858469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5260866601) 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, 3375901 + ... + 3377458.

It is an arithmetic number, because the mean of its divisors is an integer number (709102800).

Almost surely, 2^5260866661 is an apocalyptic number.

It is an amenable number.

5260866661 is a deficient number, since it is larger than the sum of its proper divisors (411955739).

5260866661 is a wasteful number, since it uses less digits than its factorization.

5260866661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753419.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 5260866661 is about 72531.8320532440. The cubic root of 5260866661 is about 1739.2116326617.

The spelling of 5260866661 in words is "five billion, two hundred sixty million, eight hundred sixty-six thousand, six hundred sixty-one".