166809034 has 12 divisors (see below), whose sum is σ = 291064914. Its totient is φ = 71489544.

The previous prime is 166809031. The next prime is 166809079. The reversal of 166809034 is 430908661.

It can be written as a sum of positive squares in only one way, i.e., 138133009 + 28676025 = 11753^2 + 5355^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166808984 and 166809002.

It is not an unprimeable number, because it can be changed into a prime (166809031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850969 + ... + 851164.

Almost surely, 2^166809034 is an apocalyptic number.

166809034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166809034 is a deficient number, since it is larger than the sum of its proper divisors (124255880).

166809034 is a wasteful number, since it uses less digits than its factorization.

166809034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702149 (or 1702142 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 166809034 is about 12915.4571734802. The cubic root of 166809034 is about 550.4778590794.

The spelling of 166809034 in words is "one hundred sixty-six million, eight hundred nine thousand, thirty-four".