166988059 has 8 divisors (see below), whose sum is σ = 202069728. Its totient is φ = 134712960.

The previous prime is 166988057. The next prime is 166988069. The reversal of 166988059 is 950889661.

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

It is a cyclic number.

It is not a de Polignac number, because 166988059 - 2¹ = 166988057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166987997 and 166988015.

It is not an unprimeable number, because it can be changed into a prime (166988051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701512 + ... + 701749.

It is an arithmetic number, because the mean of its divisors is an integer number (25258716).

Almost surely, 2^166988059 is an apocalyptic number.

166988059 is a deficient number, since it is larger than the sum of its proper divisors (35081669).

166988059 is a wasteful number, since it uses less digits than its factorization.

166988059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403285.

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 166988059 is about 12922.3859639000. The cubic root of 166988059 is about 550.6747190493.

The spelling of 166988059 in words is "one hundred sixty-six million, nine hundred eighty-eight thousand, fifty-nine".