161035304122 has 36 divisors (see below), whose sum is σ = 308856990330. Its totient is φ = 62741022960.

The previous prime is 161035304083. The next prime is 161035304123. The reversal of 161035304122 is 221403530161.

It can be written as a sum of positive squares in only one way, i.e., 158659619041 + 2375685081 = 398321^2 + 48741^2 .

It is not an unprimeable number, because it can be changed into a prime (161035304123) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6778297 + ... + 6802012.

Almost surely, 2^161035304122 is an apocalyptic number.

161035304122 is a deficient number, since it is larger than the sum of its proper divisors (147821686208).

161035304122 is a wasteful number, since it uses less digits than its factorization.

161035304122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13580347 (or 13580329 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 161035304122 its reverse (221403530161), we get a palindrome (382438834283).

The spelling of 161035304122 in words is "one hundred sixty-one billion, thirty-five million, three hundred four thousand, one hundred twenty-two".