16145739537 has 4 divisors (see below), whose sum is σ = 21527652720. Its totient is φ = 10763826356.

The previous prime is 16145739527. The next prime is 16145739539. The reversal of 16145739537 is 73593754161.

It is a happy number.

16145739537 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, 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 16145739537 - 2⁴ = 16145739521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16145739537.

It is not an unprimeable number, because it can be changed into a prime (16145739539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690956587 + ... + 2690956592.

It is an arithmetic number, because the mean of its divisors is an integer number (5381913180).

Almost surely, 2^16145739537 is an apocalyptic number.

It is an amenable number.

16145739537 is a deficient number, since it is larger than the sum of its proper divisors (5381913183).

16145739537 is an equidigital number, since it uses as much as digits as its factorization.

16145739537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381913182.

The product of its digits is 2381400, while the sum is 51.

The spelling of 16145739537 in words is "sixteen billion, one hundred forty-five million, seven hundred thirty-nine thousand, five hundred thirty-seven".