5245312666 has 8 divisors (see below), whose sum is σ = 8583238944. Its totient is φ = 2384233020.

The previous prime is 5245312643. The next prime is 5245312673. The reversal of 5245312666 is 6662135425.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119211630 + ... + 119211673.

It is an arithmetic number, because the mean of its divisors is an integer number (1072904868).

Almost surely, 2^5245312666 is an apocalyptic number.

5245312666 is a deficient number, since it is larger than the sum of its proper divisors (3337926278).

5245312666 is a wasteful number, since it uses less digits than its factorization.

5245312666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238423316.

The product of its digits is 259200, while the sum is 40.

The square root of 5245312666 is about 72424.5308303754. The cubic root of 5245312666 is about 1737.4959208779.

The spelling of 5245312666 in words is "five billion, two hundred forty-five million, three hundred twelve thousand, six hundred sixty-six".