166685370335 has 8 divisors (see below), whose sum is σ = 218206303056. Its totient is φ = 121225723840.

The previous prime is 166685370289. The next prime is 166685370353. The reversal of 166685370335 is 533073586661.

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

It is not a de Polignac number, because 166685370335 - 2³⁴ = 149505501151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1515321494 + ... + 1515321603.

It is an arithmetic number, because the mean of its divisors is an integer number (27275787882).

Almost surely, 2^166685370335 is an apocalyptic number.

166685370335 is a deficient number, since it is larger than the sum of its proper divisors (51520932721).

166685370335 is a wasteful number, since it uses less digits than its factorization.

166685370335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030643113.

The product of its (nonzero) digits is 8164800, while the sum is 53.

The spelling of 166685370335 in words is "one hundred sixty-six billion, six hundred eighty-five million, three hundred seventy thousand, three hundred thirty-five".