166040350341065 has 128 divisors (see below), whose sum is σ = 214266569932800. Its totient is φ = 123327775549440.

The previous prime is 166040350341049. The next prime is 166040350341077. The reversal of 166040350341065 is 560143053040661.

It is not a de Polignac number, because 166040350341065 - 2⁴ = 166040350341049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 46032809492 + ... + 46032813098.

It is an arithmetic number, because the mean of its divisors is an integer number (1673957577600).

Almost surely, 2^{166040350341065} is an apocalyptic number.

It is an amenable number.

166040350341065 is a deficient number, since it is larger than the sum of its proper divisors (48226219591735).

166040350341065 is a wasteful number, since it uses less digits than its factorization.

166040350341065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 166040350341065 in words is "one hundred sixty-six trillion, forty billion, three hundred fifty million, three hundred forty-one thousand, sixty-five".