655516698 has 24 divisors (see below), whose sum is σ = 1370519808. Its totient is φ = 209004312.

The previous prime is 655516691. The next prime is 655516699. The reversal of 655516698 is 896615556.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655516698.

It is not an unprimeable number, because it can be changed into a prime (655516691) 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, 100090 + ... + 106437.

It is an arithmetic number, because the mean of its divisors is an integer number (57104992).

Almost surely, 2^655516698 is an apocalyptic number.

655516698 is an abundant number, since it is smaller than the sum of its proper divisors (715003110).

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

655516698 is a wasteful number, since it uses less digits than its factorization.

655516698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206578 (or 206555 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The square root of 655516698 is about 25603.0603248909. The cubic root of 655516698 is about 868.6828609295.

The spelling of 655516698 in words is "six hundred fifty-five million, five hundred sixteen thousand, six hundred ninety-eight".