166347798 has 16 divisors (see below), whose sum is σ = 343428096. Its totient is φ = 53660520.

The previous prime is 166347749. The next prime is 166347803. The reversal of 166347798 is 897743661.

It is a self number, because there is not a number n which added to its sum of digits gives 166347798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446986 + ... + 447357.

It is an arithmetic number, because the mean of its divisors is an integer number (21464256).

Almost surely, 2^166347798 is an apocalyptic number.

166347798 is an abundant number, since it is smaller than the sum of its proper divisors (177080298).

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

166347798 is a wasteful number, since it uses less digits than its factorization.

166347798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894379.

The product of its digits is 1524096, while the sum is 51.

The square root of 166347798 is about 12897.5888444313. The cubic root of 166347798 is about 549.9700237106.

The spelling of 166347798 in words is "one hundred sixty-six million, three hundred forty-seven thousand, seven hundred ninety-eight".