165044340234051 has 16 divisors (see below), whose sum is σ = 234567558180000. Its totient is φ = 102862218096128.

The previous prime is 165044340234047. The next prime is 165044340234061. The reversal of 165044340234051 is 150432043440561.

It is a cyclic number.

It is not a de Polignac number, because 165044340234051 - 2² = 165044340234047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165044340233994 and 165044340234012.

It is not an unprimeable number, because it can be changed into a prime (165044340234041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10859601576 + ... + 10859616773.

It is an arithmetic number, because the mean of its divisors is an integer number (14660472386250).

Almost surely, 2^{165044340234051} is an apocalyptic number.

165044340234051 is a deficient number, since it is larger than the sum of its proper divisors (69523217945949).

165044340234051 is a wasteful number, since it uses less digits than its factorization.

165044340234051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21719218518.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 165044340234051 in words is "one hundred sixty-five trillion, forty-four billion, three hundred forty million, two hundred thirty-four thousand, fifty-one".