168794665810 has 16 divisors (see below), whose sum is σ = 304008211800. Its totient is φ = 67478352256.

The previous prime is 168794665777. The next prime is 168794665867. The reversal of 168794665810 is 18566497861.

It is a happy number.

168794665810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 130590445129 + 38204220681 = 361373^2 + 195459^2 .

It is a super-2 number, since 2×168794665810² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4921315 + ... + 4955494.

Almost surely, 2^168794665810 is an apocalyptic number.

168794665810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168794665810 is a deficient number, since it is larger than the sum of its proper divisors (135213545990).

168794665810 is a wasteful number, since it uses less digits than its factorization.

168794665810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878525.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 168794665810 in words is "one hundred sixty-eight billion, seven hundred ninety-four million, six hundred sixty-five thousand, eight hundred ten".