161333207104 has 14 divisors (see below), whose sum is σ = 320145582974. Its totient is φ = 80666603520.

The previous prime is 161333207099. The next prime is 161333207149. The reversal of 161333207104 is 401702333161.

It can be written as a sum of positive squares in only one way, i.e., 85002568704 + 76330638400 = 291552^2 + 276280^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260415617 + ... + 1260415744.

It is an arithmetic number, because the mean of its divisors is an integer number (22867541641).

Almost surely, 2^161333207104 is an apocalyptic number.

It is an amenable number.

161333207104 is a deficient number, since it is larger than the sum of its proper divisors (158812375870).

161333207104 is an equidigital number, since it uses as much as digits as its factorization.

161333207104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520831373 (or 2520831363 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 161333207104 in words is "one hundred sixty-one billion, three hundred thirty-three million, two hundred seven thousand, one hundred four".