16116437 has 4 divisors (see below), whose sum is σ = 16127436. Its totient is φ = 16105440.

The previous prime is 16116407. The next prime is 16116439. The reversal of 16116437 is 73461161.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 73461161 = 2083 ⋅35267.

It can be written as a sum of positive squares in 2 ways, for example, as 323761 + 15792676 = 569^2 + 3974^2 .

It is a cyclic number.

It is not a de Polignac number, because 16116437 - 2⁸ = 16116181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16116439) 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, 2888 + ... + 6369.

It is an arithmetic number, because the mean of its divisors is an integer number (4031859).

Almost surely, 2^16116437 is an apocalyptic number.

It is an amenable number.

16116437 is a deficient number, since it is larger than the sum of its proper divisors (10999).

16116437 is an equidigital number, since it uses as much as digits as its factorization.

16116437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10998.

The product of its digits is 3024, while the sum is 29.

The square root of 16116437 is about 4014.5282412757. The cubic root of 16116437 is about 252.5939891250.

Adding to 16116437 its reverse (73461161), we get a palindrome (89577598).

The spelling of 16116437 in words is "sixteen million, one hundred sixteen thousand, four hundred thirty-seven".