168246645 has 64 divisors (see below), whose sum is σ = 320371200. Its totient is φ = 75339264.

The previous prime is 168246643. The next prime is 168246707. The reversal of 168246645 is 546642861.

It is not a de Polignac number, because 168246645 - 2¹ = 168246643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168246597 and 168246606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168246643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 272377 + ... + 272993.

It is an arithmetic number, because the mean of its divisors is an integer number (5005800).

Almost surely, 2^168246645 is an apocalyptic number.

168246645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168246645 is a deficient number, since it is larger than the sum of its proper divisors (152124555).

168246645 is an equidigital number, since it uses as much as digits as its factorization.

168246645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 685 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 168246645 is about 12970.9924446821. The cubic root of 168246645 is about 552.0547329419.

The spelling of 168246645 in words is "one hundred sixty-eight million, two hundred forty-six thousand, six hundred forty-five".