816056722279 has 8 divisors (see below), whose sum is σ = 817724708640. Its totient is φ = 814389557376.

The previous prime is 816056722277. The next prime is 816056722303. The reversal of 816056722279 is 972227650618.

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

It is a cyclic number.

It is not a de Polignac number, because 816056722279 - 2¹ = 816056722277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816056722277) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1803547 + ... + 2210179.

It is an arithmetic number, because the mean of its divisors is an integer number (102215588580).

Almost surely, 2^816056722279 is an apocalyptic number.

816056722279 is a deficient number, since it is larger than the sum of its proper divisors (1667986361).

816056722279 is a wasteful number, since it uses less digits than its factorization.

816056722279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410729.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 816056722279 in words is "eight hundred sixteen billion, fifty-six million, seven hundred twenty-two thousand, two hundred seventy-nine".