165114244256551 has 4 divisors (see below), whose sum is σ = 165118851660312. Its totient is φ = 165109636852792.

The previous prime is 165114244256531. The next prime is 165114244256603. The reversal of 165114244256551 is 155652442411561.

165114244256551 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.

It is a cyclic number.

It is not a de Polignac number, because 165114244256551 - 2⁵ = 165114244256519 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 (165114244256531) 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, 2303648125 + ... + 2303719798.

It is an arithmetic number, because the mean of its divisors is an integer number (41279712915078).

Almost surely, 2^{165114244256551} is an apocalyptic number.

165114244256551 is a deficient number, since it is larger than the sum of its proper divisors (4607403761).

165114244256551 is an equidigital number, since it uses as much as digits as its factorization.

165114244256551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607403760.

The product of its digits is 5760000, while the sum is 52.

The spelling of 165114244256551 in words is "one hundred sixty-five trillion, one hundred fourteen billion, two hundred forty-four million, two hundred fifty-six thousand, five hundred fifty-one".