259490166 has 32 divisors (see below), whose sum is σ = 564345600. Its totient is φ = 79065504.

The previous prime is 259490131. The next prime is 259490183. The reversal of 259490166 is 661094952.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8116 + ... + 24183.

It is an arithmetic number, because the mean of its divisors is an integer number (17635800).

Almost surely, 2^259490166 is an apocalyptic number.

259490166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

259490166 is an abundant number, since it is smaller than the sum of its proper divisors (304855434).

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

259490166 is a wasteful number, since it uses less digits than its factorization.

259490166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32420.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 259490166 is about 16108.6984576657. The cubic root of 259490166 is about 637.8329751487.

The spelling of 259490166 in words is "two hundred fifty-nine million, four hundred ninety thousand, one hundred sixty-six".