245564664 has 32 divisors (see below), whose sum is σ = 646224000. Its totient is φ = 77546592.

The previous prime is 245564659. The next prime is 245564687. The reversal of 245564664 is 466465542.

245564664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268804 + ... + 269715.

It is an arithmetic number, because the mean of its divisors is an integer number (20194500).

Almost surely, 2^245564664 is an apocalyptic number.

245564664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245564664 is an abundant number, since it is smaller than the sum of its proper divisors (400659336).

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

245564664 is a wasteful number, since it uses less digits than its factorization.

245564664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538547 (or 538543 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The square root of 245564664 is about 15670.5029912891. The cubic root of 245564664 is about 626.2128249135.

The spelling of 245564664 in words is "two hundred forty-five million, five hundred sixty-four thousand, six hundred sixty-four".