655416667268 has 48 divisors (see below), whose sum is σ = 1355663542464. Its totient is φ = 273871395840.

The previous prime is 655416667267. The next prime is 655416667291. The reversal of 655416667268 is 862766614556.

It is a self number, because there is not a number n which added to its sum of digits gives 655416667268.

It is not an unprimeable number, because it can be changed into a prime (655416667267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10156505 + ... + 10220832.

It is an arithmetic number, because the mean of its divisors is an integer number (28242990468).

Almost surely, 2^655416667268 is an apocalyptic number.

655416667268 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

655416667268 is an abundant number, since it is smaller than the sum of its proper divisors (700246875196).

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

655416667268 is a wasteful number, since it uses less digits than its factorization.

655416667268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20377412 (or 20377410 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 62.

The spelling of 655416667268 in words is "six hundred fifty-five billion, four hundred sixteen million, six hundred sixty-seven thousand, two hundred sixty-eight".