166348799 has 4 divisors (see below), whose sum is σ = 168454560. Its totient is φ = 164243040.

The previous prime is 166348771. The next prime is 166348801. The reversal of 166348799 is 997843661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166348799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166348799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166348709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052762 + ... + 1052919.

It is an arithmetic number, because the mean of its divisors is an integer number (42113640).

Almost surely, 2^166348799 is an apocalyptic number.

166348799 is a deficient number, since it is larger than the sum of its proper divisors (2105761).

166348799 is an equidigital number, since it uses as much as digits as its factorization.

166348799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105760.

The product of its digits is 1959552, while the sum is 53.

The square root of 166348799 is about 12897.6276500758. The cubic root of 166348799 is about 549.9711268589.

The spelling of 166348799 in words is "one hundred sixty-six million, three hundred forty-eight thousand, seven hundred ninety-nine".