166773838 has 64 divisors (see below), whose sum is σ = 326592000. Its totient is φ = 61971840.

The previous prime is 166773821. The next prime is 166773839. The reversal of 166773838 is 838377661.

It is a junction number, because it is equal to n+sod(n) for n = 166773791 and 166773800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166773839) 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 in 31 ways as a sum of consecutive naturals, for example, 477688 + ... + 478036.

It is an arithmetic number, because the mean of its divisors is an integer number (5103000).

Almost surely, 2^166773838 is an apocalyptic number.

166773838 is a deficient number, since it is larger than the sum of its proper divisors (159818162).

166773838 is a wasteful number, since it uses less digits than its factorization.

166773838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its digits is 1016064, while the sum is 49.

The square root of 166773838 is about 12914.0945482058. The cubic root of 166773838 is about 550.4391401901.

The spelling of 166773838 in words is "one hundred sixty-six million, seven hundred seventy-three thousand, eight hundred thirty-eight".