245242112266566 has 64 divisors (see below), whose sum is σ = 548854506973440. Its totient is φ = 81168621428160.

The previous prime is 245242112266523. The next prime is 245242112266583. The reversal of 245242112266566 is 665662211242542.

245242112266566 is a `hidden beast` number, since 2 + 4 + 5 + 2 + 4 + 2 + 1 + 12 + 2 + 66 + 566 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24260520 + ... + 32849003.

It is an arithmetic number, because the mean of its divisors is an integer number (8575851671460).

Almost surely, 2^{245242112266566} is an apocalyptic number.

245242112266566 is an abundant number, since it is smaller than the sum of its proper divisors (303612394706874).

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

245242112266566 is a wasteful number, since it uses less digits than its factorization.

245242112266566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57110098 (or 57110092 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 245242112266566 in words is "two hundred forty-five trillion, two hundred forty-two billion, one hundred twelve million, two hundred sixty-six thousand, five hundred sixty-six".