165610066150641 has 32 divisors (see below), whose sum is σ = 261200484115200. Its totient is φ = 91321972519680.

The previous prime is 165610066150631. The next prime is 165610066150643. The reversal of 165610066150641 is 146051660016561.

It is not a de Polignac number, because 165610066150641 - 2²⁶ = 165609999041777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165610066150643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71928906 + ... + 74195603.

It is an arithmetic number, because the mean of its divisors is an integer number (8162515128600).

Almost surely, 2^{165610066150641} is an apocalyptic number.

It is an amenable number.

165610066150641 is a deficient number, since it is larger than the sum of its proper divisors (95590417964559).

165610066150641 is a wasteful number, since it uses less digits than its factorization.

165610066150641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146126409.

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 165610066150641 in words is "one hundred sixty-five trillion, six hundred ten billion, sixty-six million, one hundred fifty thousand, six hundred forty-one".