165929419354051 has 4 divisors (see below), whose sum is σ = 166050801520272. Its totient is φ = 165808037187832.

The previous prime is 165929419354031. The next prime is 165929419354093. The reversal of 165929419354051 is 150453914929561.

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 165929419354051 - 2³⁹ = 165379663540163 is a prime.

It is a super-2 number, since 2×165929419354051² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165929419354031) 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, 60691081060 + ... + 60691083793.

It is an arithmetic number, because the mean of its divisors is an integer number (41512700380068).

Almost surely, 2^{165929419354051} is an apocalyptic number.

165929419354051 is a deficient number, since it is larger than the sum of its proper divisors (121382166221).

165929419354051 is a wasteful number, since it uses less digits than its factorization.

165929419354051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121382166220.

The product of its (nonzero) digits is 52488000, while the sum is 64.

The spelling of 165929419354051 in words is "one hundred sixty-five trillion, nine hundred twenty-nine billion, four hundred nineteen million, three hundred fifty-four thousand, fifty-one".