245568865542 has 128 divisors (see below), whose sum is σ = 677252717568. Its totient is φ = 57286310400.

The previous prime is 245568865501. The next prime is 245568865543.

245568865542 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245568865543) 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, 330309 + ... + 774752.

It is an arithmetic number, because the mean of its divisors is an integer number (5291036856).

Almost surely, 2^245568865542 is an apocalyptic number.

245568865542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245568865542 is an abundant number, since it is smaller than the sum of its proper divisors (431683852026).

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

245568865542 is a wasteful number, since it uses less digits than its factorization.

245568865542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105134.

The product of its digits is 92160000, while the sum is 60.

The spelling of 245568865542 in words is "two hundred forty-five billion, five hundred sixty-eight million, eight hundred sixty-five thousand, five hundred forty-two".