168045373440 has 960 divisors, whose sum is σ = 697530113280. Its totient is φ = 37902090240.

The previous prime is 168045373427. The next prime is 168045373477. The reversal of 168045373440 is 44373540861.

168045373440 is a `hidden beast` number, since 1 + 6 + 80 + 4 + 537 + 34 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 598026100 + ... + 598026380.

It is an arithmetic number, because the mean of its divisors is an integer number (726593868).

Almost surely, 2^168045373440 is an apocalyptic number.

168045373440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168045373440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348765056640).

168045373440 is an abundant number, since it is smaller than the sum of its proper divisors (529484739840).

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

168045373440 is a wasteful number, since it uses less digits than its factorization.

168045373440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 168045373440 in words is "one hundred sixty-eight billion, forty-five million, three hundred seventy-three thousand, four hundred forty".