165624282882449 has 4 divisors (see below), whose sum is σ = 165637483204464. Its totient is φ = 165611082560436.

The previous prime is 165624282882407. The next prime is 165624282882467. The reversal of 165624282882449 is 944288282426561.

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 165624282882449 - 2²⁰ = 165624281833873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165624282882749) 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, 6600142187 + ... + 6600167280.

It is an arithmetic number, because the mean of its divisors is an integer number (41409370801116).

Almost surely, 2^{165624282882449} is an apocalyptic number.

It is an amenable number.

165624282882449 is a deficient number, since it is larger than the sum of its proper divisors (13200322015).

165624282882449 is a wasteful number, since it uses less digits than its factorization.

165624282882449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13200322014.

The product of its digits is 849346560, while the sum is 71.

The spelling of 165624282882449 in words is "one hundred sixty-five trillion, six hundred twenty-four billion, two hundred eighty-two million, eight hundred eighty-two thousand, four hundred forty-nine".