166798850 has 24 divisors (see below), whose sum is σ = 310630788. Its totient is φ = 66636800.

The previous prime is 166798847. The next prime is 166798859. The reversal of 166798850 is 58897661.

It is a happy number.

166798850 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 94497841 + 72301009 = 9721^2 + 8503^2 .

It is a super-2 number, since 2×166798850² = 55643712722645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (166798859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53330 + ... + 56370.

Almost surely, 2^166798850 is an apocalyptic number.

166798850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166798850 is a deficient number, since it is larger than the sum of its proper divisors (143831938).

166798850 is a wasteful number, since it uses less digits than its factorization.

166798850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4145 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 166798850 is about 12915.0629111902. The cubic root of 166798850 is about 550.4666562876.

The spelling of 166798850 in words is "one hundred sixty-six million, seven hundred ninety-eight thousand, eight hundred fifty".