166688853 has 8 divisors (see below), whose sum is σ = 223615968. Its totient is φ = 110443824.

The previous prime is 166688827. The next prime is 166688887. The reversal of 166688853 is 358886661.

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

It is not a de Polignac number, because 166688853 - 2⁶ = 166688789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166688796 and 166688805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166688803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169950 + ... + 170927.

It is an arithmetic number, because the mean of its divisors is an integer number (27951996).

Almost surely, 2^166688853 is an apocalyptic number.

It is an amenable number.

166688853 is a deficient number, since it is larger than the sum of its proper divisors (56927115).

166688853 is a wasteful number, since it uses less digits than its factorization.

166688853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341043.

The product of its digits is 1658880, while the sum is 51.

The square root of 166688853 is about 12910.8037317589. The cubic root of 166688853 is about 550.3456262852.

The spelling of 166688853 in words is "one hundred sixty-six million, six hundred eighty-eight thousand, eight hundred fifty-three".