166965696 has 42 divisors (see below), whose sum is σ = 478578672. Its totient is φ = 55655040.

The previous prime is 166965679. The next prime is 166965697. The reversal of 166965696 is 696569661.

It is a happy number.

166965696 is a `hidden beast` number, since 16 + 69 + 6 + 569 + 6 = 666.

166965696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166965697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144360 + ... + 145511.

Almost surely, 2^166965696 is an apocalyptic number.

166965696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166965696 is an abundant number, since it is smaller than the sum of its proper divisors (311612976).

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

166965696 is a wasteful number, since it uses less digits than its factorization.

166965696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289889 (or 289876 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 166965696 is about 12921.5206535454. The cubic root of 166965696 is about 550.6501358774.

The spelling of 166965696 in words is "one hundred sixty-six million, nine hundred sixty-five thousand, six hundred ninety-six".