166339892 has 6 divisors (see below), whose sum is σ = 291094818. Its totient is φ = 83169944.

The previous prime is 166339879. The next prime is 166339897. The reversal of 166339892 is 298933661.

It can be written as a sum of positive squares in only one way, i.e., 151930276 + 14409616 = 12326^2 + 3796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166339897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20792483 + ... + 20792490.

It is an arithmetic number, because the mean of its divisors is an integer number (48515803).

Almost surely, 2^166339892 is an apocalyptic number.

It is an amenable number.

166339892 is a deficient number, since it is larger than the sum of its proper divisors (124754926).

166339892 is a wasteful number, since it uses less digits than its factorization.

166339892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41584977 (or 41584975 counting only the distinct ones).

The product of its digits is 419904, while the sum is 47.

The square root of 166339892 is about 12897.2823493944. The cubic root of 166339892 is about 549.9613107771.

The spelling of 166339892 in words is "one hundred sixty-six million, three hundred thirty-nine thousand, eight hundred ninety-two".