5166605321 has 4 divisors (see below), whose sum is σ = 5166851712. Its totient is φ = 5166358932.

The previous prime is 5166605263. The next prime is 5166605329. The reversal of 5166605321 is 1235066615.

5166605321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1235066615 = 5 ⋅247013323.

It is a cyclic number.

It is not a de Polignac number, because 5166605321 - 2³⁰ = 4092863497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5166605329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88481 + ... + 134766.

It is an arithmetic number, because the mean of its divisors is an integer number (1291712928).

Almost surely, 2^5166605321 is an apocalyptic number.

It is an amenable number.

5166605321 is a deficient number, since it is larger than the sum of its proper divisors (246391).

5166605321 is a wasteful number, since it uses less digits than its factorization.

5166605321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246390.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5166605321 is about 71879.1021159836. The cubic root of 5166605321 is about 1728.7615537596.

The spelling of 5166605321 in words is "five billion, one hundred sixty-six million, six hundred five thousand, three hundred twenty-one".