655510768068 has 24 divisors (see below), whose sum is σ = 1647180904768. Its totient is φ = 201695620896.

The previous prime is 655510768063. The next prime is 655510768111. The reversal of 655510768068 is 860867015556.

655510768068 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 655510767999 and 655510768017.

It is not an unprimeable number, because it can be changed into a prime (655510768063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2100995896 + ... + 2100996207.

Almost surely, 2^655510768068 is an apocalyptic number.

It is an amenable number.

655510768068 is an abundant number, since it is smaller than the sum of its proper divisors (991670136700).

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

655510768068 is a wasteful number, since it uses less digits than its factorization.

655510768068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201992123 (or 4201992121 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 57.

The spelling of 655510768068 in words is "six hundred fifty-five billion, five hundred ten million, seven hundred sixty-eight thousand, sixty-eight".