16361213137 has 4 divisors (see below), whose sum is σ = 16605410416. Its totient is φ = 16117015860.

The previous prime is 16361213131. The next prime is 16361213159. The reversal of 16361213137 is 73131216361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16361213137 - 2⁷ = 16361213009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16361213131) 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, 122098539 + ... + 122098672.

It is an arithmetic number, because the mean of its divisors is an integer number (4151352604).

Almost surely, 2^16361213137 is an apocalyptic number.

It is an amenable number.

16361213137 is a deficient number, since it is larger than the sum of its proper divisors (244197279).

16361213137 is an equidigital number, since it uses as much as digits as its factorization.

16361213137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244197278.

The product of its digits is 13608, while the sum is 34.

Adding to 16361213137 its reverse (73131216361), we get a palindrome (89492429498).

The spelling of 16361213137 in words is "sixteen billion, three hundred sixty-one million, two hundred thirteen thousand, one hundred thirty-seven".