7166239285 has 8 divisors (see below), whose sum is σ = 8625006936. Its totient is φ = 5715978240.

The previous prime is 7166239277. The next prime is 7166239349. The reversal of 7166239285 is 5829326617.

It can be written as a sum of positive squares in 4 ways, for example, as 21594609 + 7144644676 = 4647^2 + 84526^2 .

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

It is not a de Polignac number, because 7166239285 - 2³ = 7166239277 is a prime.

It is a super-2 number, since 2×7166239285² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124796 + ... + 2128165.

It is an arithmetic number, because the mean of its divisors is an integer number (1078125867).

Almost surely, 2^7166239285 is an apocalyptic number.

It is an amenable number.

7166239285 is a deficient number, since it is larger than the sum of its proper divisors (1458767651).

7166239285 is a wasteful number, since it uses less digits than its factorization.

7166239285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253303.

The product of its digits is 1088640, while the sum is 49.

The square root of 7166239285 is about 84653.6430698644. The cubic root of 7166239285 is about 1927.9559273691.

The spelling of 7166239285 in words is "seven billion, one hundred sixty-six million, two hundred thirty-nine thousand, two hundred eighty-five".