245662660663 has 24 divisors (see below), whose sum is σ = 287261614080. Its totient is φ = 209470932720.

The previous prime is 245662660657. The next prime is 245662660703. The reversal of 245662660663 is 366066266542.

245662660663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245662660663 - 2²⁵ = 245629106231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245662660663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245662660603) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 16503258 + ... + 16518136.

It is an arithmetic number, because the mean of its divisors is an integer number (11969233920).

Almost surely, 2^245662660663 is an apocalyptic number.

245662660663 is a deficient number, since it is larger than the sum of its proper divisors (41598953417).

245662660663 is a wasteful number, since it uses less digits than its factorization.

245662660663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16627 (or 16620 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 52.

The spelling of 245662660663 in words is "two hundred forty-five billion, six hundred sixty-two million, six hundred sixty thousand, six hundred sixty-three".