161424131516 has 12 divisors (see below), whose sum is σ = 299109420288. Its totient is φ = 75964297152.

The previous prime is 161424131513. The next prime is 161424131521. The reversal of 161424131516 is 615131424161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161424131513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186942076 + ... + 1186942211.

It is an arithmetic number, because the mean of its divisors is an integer number (24925785024).

Almost surely, 2^161424131516 is an apocalyptic number.

It is an amenable number.

161424131516 is a deficient number, since it is larger than the sum of its proper divisors (137685288772).

161424131516 is a wasteful number, since it uses less digits than its factorization.

161424131516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373884308 (or 2373884306 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

Adding to 161424131516 its reverse (615131424161), we get a palindrome (776555555677).

The spelling of 161424131516 in words is "one hundred sixty-one billion, four hundred twenty-four million, one hundred thirty-one thousand, five hundred sixteen".