796821071555 has 4 divisors (see below), whose sum is σ = 956185285872. Its totient is φ = 637456857240.

The previous prime is 796821071551. The next prime is 796821071609. The reversal of 796821071555 is 555170128697.

796821071555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 796821071555 - 2² = 796821071551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 796821071555.

It is not an unprimeable number, because it can be changed into a prime (796821071551) 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, 79682107151 + ... + 79682107160.

It is an arithmetic number, because the mean of its divisors is an integer number (239046321468).

Almost surely, 2^796821071555 is an apocalyptic number.

796821071555 is a deficient number, since it is larger than the sum of its proper divisors (159364214317).

796821071555 is a wasteful number, since it uses less digits than its factorization.

796821071555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159364214316.

The product of its (nonzero) digits is 5292000, while the sum is 56.

The spelling of 796821071555 in words is "seven hundred ninety-six billion, eight hundred twenty-one million, seventy-one thousand, five hundred fifty-five".