1159991608922 has 4 divisors (see below), whose sum is σ = 1739987413386. Its totient is φ = 579995804460.

The previous prime is 1159991608921. The next prime is 1159991608931. The reversal of 1159991608922 is 2298061999511.

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

It can be written as a sum of positive squares in only one way, i.e., 982439774761 + 177551834161 = 991181^2 + 421369^2 .

It is not an unprimeable number, because it can be changed into a prime (1159991608921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289997902229 + ... + 289997902232.

Almost surely, 2^{1159991608922} is an apocalyptic number.

1159991608922 is a deficient number, since it is larger than the sum of its proper divisors (579995804464).

1159991608922 is an equidigital number, since it uses as much as digits as its factorization.

1159991608922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579995804463.

The product of its (nonzero) digits is 6298560, while the sum is 62.

The spelling of 1159991608922 in words is "one trillion, one hundred fifty-nine billion, nine hundred ninety-one million, six hundred eight thousand, nine hundred twenty-two".