165723940123042 has 8 divisors (see below), whose sum is σ = 284098183068096. Its totient is φ = 71024545767012.

The previous prime is 165723940123039. The next prime is 165723940123087. The reversal of 165723940123042 is 240321049327561.

165723940123042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×165723940123042² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5918712147238 + ... + 5918712147265.

It is an arithmetic number, because the mean of its divisors is an integer number (35512272883512).

Almost surely, 2^{165723940123042} is an apocalyptic number.

165723940123042 is a deficient number, since it is larger than the sum of its proper divisors (118374242945054).

165723940123042 is a wasteful number, since it uses less digits than its factorization.

165723940123042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11837424294512.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 165723940123042 in words is "one hundred sixty-five trillion, seven hundred twenty-three billion, nine hundred forty million, one hundred twenty-three thousand, forty-two".