165145660020342 has 24 divisors (see below), whose sum is σ = 367486288515216. Its totient is φ = 53560754600976.

The previous prime is 165145660020197. The next prime is 165145660020349. The reversal of 165145660020342 is 243020066541561.

165145660020342 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 4 + 5 + 6 + 600 + 2 + 0 + 34 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165145660020349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123983227578 + ... + 123983228909.

It is an arithmetic number, because the mean of its divisors is an integer number (15311928688134).

Almost surely, 2^{165145660020342} is an apocalyptic number.

165145660020342 is an abundant number, since it is smaller than the sum of its proper divisors (202340628494874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165145660020342 is a wasteful number, since it uses less digits than its factorization.

165145660020342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247966456532 (or 247966456529 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 165145660020342 in words is "one hundred sixty-five trillion, one hundred forty-five billion, six hundred sixty million, twenty thousand, three hundred forty-two".