161131203614 has 4 divisors (see below), whose sum is σ = 241696805424. Its totient is φ = 80565601806.

The previous prime is 161131203587. The next prime is 161131203671. The reversal of 161131203614 is 416302131161.

161131203614 is digitally balanced in base 3, 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40282800902 + ... + 40282800905.

It is an arithmetic number, because the mean of its divisors is an integer number (60424201356).

Almost surely, 2^161131203614 is an apocalyptic number.

161131203614 is a deficient number, since it is larger than the sum of its proper divisors (80565601810).

161131203614 is an equidigital number, since it uses as much as digits as its factorization.

161131203614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80565601809.

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 161131203614 its reverse (416302131161), we get a palindrome (577433334775).

The spelling of 161131203614 in words is "one hundred sixty-one billion, one hundred thirty-one million, two hundred three thousand, six hundred fourteen".