655164678 has 32 divisors (see below), whose sum is σ = 1529385984. Its totient is φ = 183206592.

The previous prime is 655164677. The next prime is 655164691. The reversal of 655164678 is 876461556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655164677) 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 in 15 ways as a sum of consecutive naturals, for example, 163975 + ... + 167922.

It is an arithmetic number, because the mean of its divisors is an integer number (47793312).

Almost surely, 2^655164678 is an apocalyptic number.

655164678 is an abundant number, since it is smaller than the sum of its proper divisors (874221306).

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

655164678 is a wasteful number, since it uses less digits than its factorization.

655164678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331956.

The product of its digits is 1209600, while the sum is 48.

The square root of 655164678 is about 25596.1848329004. The cubic root of 655164678 is about 868.5273355268.

The spelling of 655164678 in words is "six hundred fifty-five million, one hundred sixty-four thousand, six hundred seventy-eight".