168537055372 has 48 divisors (see below), whose sum is σ = 346287820032. Its totient is φ = 70269192000.

The previous prime is 168537055319. The next prime is 168537055381. The reversal of 168537055372 is 273550735861.

168537055372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 23358 + ... + 581050.

It is an arithmetic number, because the mean of its divisors is an integer number (7214329584).

Almost surely, 2^168537055372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168537055372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173143910016).

168537055372 is an abundant number, since it is smaller than the sum of its proper divisors (177750764660).

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

168537055372 is a wasteful number, since it uses less digits than its factorization.

168537055372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557998 (or 557996 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 168537055372 in words is "one hundred sixty-eight billion, five hundred thirty-seven million, fifty-five thousand, three hundred seventy-two".