166090059 has 6 divisors (see below), whose sum is σ = 239907876. Its totient is φ = 110726700.

The previous prime is 166090019. The next prime is 166090069. The reversal of 166090059 is 950090661.

It is not a de Polignac number, because 166090059 - 2¹² = 166085963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166090009) 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, 9227217 + ... + 9227234.

It is an arithmetic number, because the mean of its divisors is an integer number (39984646).

Almost surely, 2^166090059 is an apocalyptic number.

166090059 is a deficient number, since it is larger than the sum of its proper divisors (73817817).

166090059 is a wasteful number, since it uses less digits than its factorization.

166090059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18454457 (or 18454454 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 166090059 is about 12887.5932198374. The cubic root of 166090059 is about 549.6858360084.

It can be divided in two parts, 1660 and 90059, that added together give a palindrome (91719).

The spelling of 166090059 in words is "one hundred sixty-six million, ninety thousand, fifty-nine".