8162381330 has 32 divisors (see below), whose sum is σ = 15028435440. Its totient is φ = 3190936320.

The previous prime is 8162381291. The next prime is 8162381333. The reversal of 8162381330 is 331832618.

It can be written as a sum of positive squares in 8 ways, for example, as 992187001 + 7170194329 = 31499^2 + 84677^2 .

It is not an unprimeable number, because it can be changed into a prime (8162381333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53156 + ... + 138384.

Almost surely, 2^8162381330 is an apocalyptic number.

8162381330 is a deficient number, since it is larger than the sum of its proper divisors (6866054110).

8162381330 is a wasteful number, since it uses less digits than its factorization.

8162381330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85454.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 8162381330 is about 90345.8982466830. The cubic root of 8162381330 is about 2013.4412416458.

The spelling of 8162381330 in words is "eight billion, one hundred sixty-two million, three hundred eighty-one thousand, three hundred thirty".