166346863594 has 16 divisors (see below), whose sum is σ = 255995043840. Its totient is φ = 81040133440.

The previous prime is 166346863559. The next prime is 166346863597. The reversal of 166346863594 is 495368643661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (166346863597) 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, 6224362 + ... + 6251029.

It is an arithmetic number, because the mean of its divisors is an integer number (15999690240).

Almost surely, 2^166346863594 is an apocalyptic number.

166346863594 is a deficient number, since it is larger than the sum of its proper divisors (89648180246).

166346863594 is a wasteful number, since it uses less digits than its factorization.

166346863594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12475565.

The product of its digits is 67184640, while the sum is 61.

The spelling of 166346863594 in words is "one hundred sixty-six billion, three hundred forty-six million, eight hundred sixty-three thousand, five hundred ninety-four".