655261256042 has 16 divisors (see below), whose sum is σ = 983803410720. Its totient is φ = 327326920368.

The previous prime is 655261256011. The next prime is 655261256053. The reversal of 655261256042 is 240652162556.

It is a junction number, because it is equal to n+sod(n) for n = 655261255984 and 655261256002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10451753 + ... + 10514259.

It is an arithmetic number, because the mean of its divisors is an integer number (61487713170).

Almost surely, 2^655261256042 is an apocalyptic number.

655261256042 is a deficient number, since it is larger than the sum of its proper divisors (328542154678).

655261256042 is a wasteful number, since it uses less digits than its factorization.

655261256042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67285.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 655261256042 in words is "six hundred fifty-five billion, two hundred sixty-one million, two hundred fifty-six thousand, forty-two".