168373745111772 has 72 divisors (see below), whose sum is σ = 433281595258512. Its totient is φ = 55121962521600.

The previous prime is 168373745111723. The next prime is 168373745111797. The reversal of 168373745111772 is 277111547373861.

168373745111772 is a `hidden beast` number, since 1 + 6 + 8 + 3 + 7 + 3 + 7 + 451 + 1 + 177 + 2 = 666.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 183576879 + ... + 184491782.

It is an arithmetic number, because the mean of its divisors is an integer number (6017799934146).

Almost surely, 2^{168373745111772} is an apocalyptic number.

168373745111772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168373745111772 is an abundant number, since it is smaller than the sum of its proper divisors (264907850146740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168373745111772 is a wasteful number, since it uses less digits than its factorization.

168373745111772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368068899 (or 368068894 counting only the distinct ones).

The product of its digits is 41489280, while the sum is 63.

The spelling of 168373745111772 in words is "one hundred sixty-eight trillion, three hundred seventy-three billion, seven hundred forty-five million, one hundred eleven thousand, seven hundred seventy-two".