166168567712 has 48 divisors (see below), whose sum is σ = 373906733760. Its totient is φ = 71209870848.

The previous prime is 166168567709. The next prime is 166168567717. The reversal of 166168567712 is 217765861661.

It is a happy number.

It is a super-3 number, since 3×166168567712³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (166168567717) 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, 6022364 + ... + 6049892.

It is an arithmetic number, because the mean of its divisors is an integer number (7789723620).

Almost surely, 2^166168567712 is an apocalyptic number.

It is an amenable number.

166168567712 is an abundant number, since it is smaller than the sum of its proper divisors (207738166048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166168567712 is a wasteful number, since it uses less digits than its factorization.

166168567712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54493 (or 54485 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The spelling of 166168567712 in words is "one hundred sixty-six billion, one hundred sixty-eight million, five hundred sixty-seven thousand, seven hundred twelve".