165412614479 has 4 divisors (see below), whose sum is σ = 189042987984. Its totient is φ = 141782240976.

The previous prime is 165412614461. The next prime is 165412614487. The reversal of 165412614479 is 974416214561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165412614479 - 2¹² = 165412610383 is a prime.

It is a super-2 number, since 2×165412614479² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165412614449) 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, 11815186742 + ... + 11815186755.

It is an arithmetic number, because the mean of its divisors is an integer number (47260746996).

Almost surely, 2^165412614479 is an apocalyptic number.

165412614479 is a deficient number, since it is larger than the sum of its proper divisors (23630373505).

165412614479 is an equidigital number, since it uses as much as digits as its factorization.

165412614479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23630373504.

The product of its digits is 1451520, while the sum is 50.

The spelling of 165412614479 in words is "one hundred sixty-five billion, four hundred twelve million, six hundred fourteen thousand, four hundred seventy-nine".