168061790 has 16 divisors (see below), whose sum is σ = 325781568. Its totient is φ = 62053536.

The previous prime is 168061763. The next prime is 168061793. The reversal of 168061790 is 97160861.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168061793) 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 7 ways as a sum of consecutive naturals, for example, 646262 + ... + 646521.

It is an arithmetic number, because the mean of its divisors is an integer number (20361348).

Almost surely, 2^168061790 is an apocalyptic number.

168061790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168061790 is a deficient number, since it is larger than the sum of its proper divisors (157719778).

168061790 is a wasteful number, since it uses less digits than its factorization.

168061790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292803.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 168061790 is about 12963.8647786839. The cubic root of 168061790 is about 551.8524753672.

The spelling of 168061790 in words is "one hundred sixty-eight million, sixty-one thousand, seven hundred ninety".