161516060204 has 6 divisors (see below), whose sum is σ = 282653105364. Its totient is φ = 80758030100.

The previous prime is 161516060203. The next prime is 161516060267. The reversal of 161516060204 is 402060615161.

It is not an unprimeable number, because it can be changed into a prime (161516060201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20189507522 + ... + 20189507529.

It is an arithmetic number, because the mean of its divisors is an integer number (47108850894).

Almost surely, 2^161516060204 is an apocalyptic number.

It is an amenable number.

161516060204 is a deficient number, since it is larger than the sum of its proper divisors (121137045160).

161516060204 is a wasteful number, since it uses less digits than its factorization.

161516060204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40379015055 (or 40379015053 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 161516060204 its reverse (402060615161), we get a palindrome (563576675365).

The spelling of 161516060204 in words is "one hundred sixty-one billion, five hundred sixteen million, sixty thousand, two hundred four".