255645263142 has 24 divisors (see below), whose sum is σ = 554077503720. Its totient is φ = 85187482560.

The previous prime is 255645263117. The next prime is 255645263147. The reversal of 255645263142 is 241362546552.

255645263142 is a `hidden beast` number, since 2 + 5 + 5 + 6 + 4 + 5 + 2 + 631 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255645263147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2243284 + ... + 2354487.

It is an arithmetic number, because the mean of its divisors is an integer number (23086562655).

Almost surely, 2^255645263142 is an apocalyptic number.

255645263142 is an abundant number, since it is smaller than the sum of its proper divisors (298432240578).

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

255645263142 is a wasteful number, since it uses less digits than its factorization.

255645263142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600868 (or 4600865 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The spelling of 255645263142 in words is "two hundred fifty-five billion, six hundred forty-five million, two hundred sixty-three thousand, one hundred forty-two".