165063113540251 has 4 divisors (see below), whose sum is σ = 165790263820392. Its totient is φ = 164335963260112.

The previous prime is 165063113540209. The next prime is 165063113540257. The reversal of 165063113540251 is 152045311360561.

165063113540251 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 165063113540251 - 2⁹ = 165063113539739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165063113540198 and 165063113540207.

It is not an unprimeable number, because it can be changed into a prime (165063113540257) 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, 363575139730 + ... + 363575140183.

It is an arithmetic number, because the mean of its divisors is an integer number (41447565955098).

Almost surely, 2^{165063113540251} is an apocalyptic number.

165063113540251 is a deficient number, since it is larger than the sum of its proper divisors (727150280141).

165063113540251 is an equidigital number, since it uses as much as digits as its factorization.

165063113540251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727150280140.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 165063113540251 in words is "one hundred sixty-five trillion, sixty-three billion, one hundred thirteen million, five hundred forty thousand, two hundred fifty-one".