166885055707 has 8 divisors (see below), whose sum is σ = 171465885776. Its totient is φ = 162307932192.

The previous prime is 166885055699. The next prime is 166885055783. The reversal of 166885055707 is 707550588661.

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

It is a cyclic number.

It is not a de Polignac number, because 166885055707 - 2³ = 166885055699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166885055797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835233 + ... + 1015570.

It is an arithmetic number, because the mean of its divisors is an integer number (21433235722).

Almost surely, 2^166885055707 is an apocalyptic number.

166885055707 is a deficient number, since it is larger than the sum of its proper divisors (4580830069).

166885055707 is a wasteful number, since it uses less digits than its factorization.

166885055707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853277.

The product of its (nonzero) digits is 14112000, while the sum is 58.

The spelling of 166885055707 in words is "one hundred sixty-six billion, eight hundred eighty-five million, fifty-five thousand, seven hundred seven".