165051812146 has 8 divisors (see below), whose sum is σ = 266622158124. Its totient is φ = 76177759440.

The previous prime is 165051812141. The next prime is 165051812153. The reversal of 165051812146 is 641218150561.

It can be written as a sum of positive squares in 2 ways, for example, as 164705293921 + 346518225 = 405839^2 + 18615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 165051812099 and 165051812108.

It is not an unprimeable number, because it can be changed into a prime (165051812141) 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, 3174073285 + ... + 3174073336.

Almost surely, 2^165051812146 is an apocalyptic number.

165051812146 is a deficient number, since it is larger than the sum of its proper divisors (101570345978).

165051812146 is a wasteful number, since it uses less digits than its factorization.

165051812146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6348146636.

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 165051812146 in words is "one hundred sixty-five billion, fifty-one million, eight hundred twelve thousand, one hundred forty-six".