8180833345 has 4 divisors (see below), whose sum is σ = 9817000020. Its totient is φ = 6544666672.

The previous prime is 8180833343. The next prime is 8180833351. The reversal of 8180833345 is 5433380818.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5850261169 + 2330572176 = 76487^2 + 48276^2 .

It is a cyclic number.

It is not a de Polignac number, because 8180833345 - 2¹ = 8180833343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8180833343) 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, 818083330 + ... + 818083339.

It is an arithmetic number, because the mean of its divisors is an integer number (2454250005).

Almost surely, 2^8180833345 is an apocalyptic number.

It is an amenable number.

8180833345 is a deficient number, since it is larger than the sum of its proper divisors (1636166675).

8180833345 is a wasteful number, since it uses less digits than its factorization.

8180833345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636166674.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 8180833345 is about 90447.9593191577. The cubic root of 8180833345 is about 2014.9573060591.

The spelling of 8180833345 in words is "eight billion, one hundred eighty million, eight hundred thirty-three thousand, three hundred forty-five".