168245520 has 40 divisors (see below), whose sum is σ = 521561856. Its totient is φ = 44865408.

The previous prime is 168245507. The next prime is 168245557. The reversal of 168245520 is 25542861.

168245520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×168245520³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350272 + ... + 350751.

Almost surely, 2^168245520 is an apocalyptic number.

168245520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168245520 is an abundant number, since it is smaller than the sum of its proper divisors (353316336).

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

168245520 is a wasteful number, since it uses less digits than its factorization.

168245520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701039 (or 701033 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 168245520 is about 12970.9490786141. The cubic root of 168245520 is about 552.0535024806.

The spelling of 168245520 in words is "one hundred sixty-eight million, two hundred forty-five thousand, five hundred twenty".