163490026922 has 4 divisors (see below), whose sum is σ = 245235040386. Its totient is φ = 81745013460.

The previous prime is 163490026891. The next prime is 163490026933. The reversal of 163490026922 is 229620094361.

It is a Cunningham number, because it is equal to 404339²+1.

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., 163490026921 + 1 = 404339^2 + 1^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40872506729 + ... + 40872506732.

Almost surely, 2^163490026922 is an apocalyptic number.

163490026922 is a deficient number, since it is larger than the sum of its proper divisors (81745013464).

163490026922 is an equidigital number, since it uses as much as digits as its factorization.

163490026922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81745013463.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 163490026922 in words is "one hundred sixty-three billion, four hundred ninety million, twenty-six thousand, nine hundred twenty-two".