161500600151606 has 4 divisors (see below), whose sum is σ = 242250900227412. Its totient is φ = 80750300075802.

The previous prime is 161500600151533. The next prime is 161500600151707. The reversal of 161500600151606 is 606151006005161.

161500600151606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 161500600151606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40375150037900 + ... + 40375150037903.

It is an arithmetic number, because the mean of its divisors is an integer number (60562725056853).

Almost surely, 2^{161500600151606} is an apocalyptic number.

161500600151606 is a deficient number, since it is larger than the sum of its proper divisors (80750300075806).

161500600151606 is an equidigital number, since it uses as much as digits as its factorization.

161500600151606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80750300075805.

The product of its (nonzero) digits is 32400, while the sum is 38.

Adding to 161500600151606 its reverse (606151006005161), we get a palindrome (767651606156767).

The spelling of 161500600151606 in words is "one hundred sixty-one trillion, five hundred billion, six hundred million, one hundred fifty-one thousand, six hundred six".