655364818 has 4 divisors (see below), whose sum is σ = 983047230. Its totient is φ = 327682408.

The previous prime is 655364813. The next prime is 655364833. The reversal of 655364818 is 818463556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 534210769 + 121154049 = 23113^2 + 11007^2 .

It is not an unprimeable number, because it can be changed into a prime (655364813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163841203 + ... + 163841206.

Almost surely, 2^655364818 is an apocalyptic number.

655364818 is a deficient number, since it is larger than the sum of its proper divisors (327682412).

655364818 is a wasteful number, since it uses less digits than its factorization.

655364818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327682411.

The product of its digits is 691200, while the sum is 46.

The square root of 655364818 is about 25600.0941013895. The cubic root of 655364818 is about 868.6157658963.

The spelling of 655364818 in words is "six hundred fifty-five million, three hundred sixty-four thousand, eight hundred eighteen".