816145179130 has 8 divisors (see below), whose sum is σ = 1469061322452. Its totient is φ = 326458071648.

The previous prime is 816145179053. The next prime is 816145179149. The reversal of 816145179130 is 31971541618.

It can be written as a sum of positive squares in 2 ways, for example, as 739405652769 + 76739526361 = 859887^2 + 277019^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40807258947 + ... + 40807258966.

Almost surely, 2^816145179130 is an apocalyptic number.

816145179130 is a deficient number, since it is larger than the sum of its proper divisors (652916143322).

816145179130 is a wasteful number, since it uses less digits than its factorization.

816145179130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81614517920.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 816145179130 in words is "eight hundred sixteen billion, one hundred forty-five million, one hundred seventy-nine thousand, one hundred thirty".