170001666545 has 16 divisors (see below), whose sum is σ = 208664667648. Its totient is φ = 132901838400.

The previous prime is 170001666533. The next prime is 170001666581. The reversal of 170001666545 is 545666100071.

It is not a de Polignac number, because 170001666545 - 2⁴ = 170001666529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407006 + ... + 711095.

It is an arithmetic number, because the mean of its divisors is an integer number (13041541728).

Almost surely, 2^170001666545 is an apocalyptic number.

It is an amenable number.

170001666545 is a deficient number, since it is larger than the sum of its proper divisors (38663001103).

170001666545 is a wasteful number, since it uses less digits than its factorization.

170001666545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118800.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 170001666545 in words is "one hundred seventy billion, one million, six hundred sixty-six thousand, five hundred forty-five".