166116947594 has 16 divisors (see below), whose sum is σ = 268352790048. Its totient is φ = 76666495152.

The previous prime is 166116947593. The next prime is 166116947599. The reversal of 166116947594 is 495749611661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (166116947593) 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, 694349 + ... + 902415.

It is an arithmetic number, because the mean of its divisors is an integer number (16772049378).

Almost surely, 2^166116947594 is an apocalyptic number.

166116947594 is a deficient number, since it is larger than the sum of its proper divisors (102235842454).

166116947594 is a wasteful number, since it uses less digits than its factorization.

166116947594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238789.

The product of its digits is 9797760, while the sum is 59.

The spelling of 166116947594 in words is "one hundred sixty-six billion, one hundred sixteen million, nine hundred forty-seven thousand, five hundred ninety-four".