1157171821822 has 16 divisors (see below), whose sum is σ = 1748745612000. Its totient is φ = 574270836480.

The previous prime is 1157171821801. The next prime is 1157171821823. The reversal of 1157171821822 is 2281281717511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157171821823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3391579 + ... + 3717142.

It is an arithmetic number, because the mean of its divisors is an integer number (109296600750).

Almost surely, 2^{1157171821822} is an apocalyptic number.

1157171821822 is a deficient number, since it is larger than the sum of its proper divisors (591573790178).

1157171821822 is a wasteful number, since it uses less digits than its factorization.

1157171821822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109331.

The product of its digits is 125440, while the sum is 46.

The spelling of 1157171821822 in words is "one trillion, one hundred fifty-seven billion, one hundred seventy-one million, eight hundred twenty-one thousand, eight hundred twenty-two".