655916787498168 has 128 divisors (see below), whose sum is σ = 2149445693952000. Its totient is φ = 181359480401280.

The previous prime is 655916787498163. The next prime is 655916787498191. The reversal of 655916787498168 is 861894787619556.

655916787498168 is a `hidden beast` number, since 6 + 5 + 59 + 1 + 6 + 7 + 8 + 7 + 498 + 1 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655916787498163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6996846663 + ... + 6996940406.

It is an arithmetic number, because the mean of its divisors is an integer number (16792544484000).

Almost surely, 2^{655916787498168} is an apocalyptic number.

It is an amenable number.

655916787498168 is an abundant number, since it is smaller than the sum of its proper divisors (1493528906453832).

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

655916787498168 is a wasteful number, since it uses less digits than its factorization.

655916787498168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13993787122 (or 13993787112 counting only the distinct ones).

The product of its digits is 43893964800, while the sum is 90.

The spelling of 655916787498168 in words is "six hundred fifty-five trillion, nine hundred sixteen billion, seven hundred eighty-seven million, four hundred ninety-eight thousand, one hundred sixty-eight".