655522667 has 8 divisors (see below), whose sum is σ = 691310160. Its totient is φ = 619863840.

The previous prime is 655522663. The next prime is 655522691. The reversal of 655522667 is 766225556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655522667 - 2² = 655522663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655522663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21608 + ... + 42165.

It is an arithmetic number, because the mean of its divisors is an integer number (86413770).

Almost surely, 2^655522667 is an apocalyptic number.

655522667 is a deficient number, since it is larger than the sum of its proper divisors (35787493).

655522667 is a wasteful number, since it uses less digits than its factorization.

655522667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64333.

The product of its digits is 756000, while the sum is 44.

The square root of 655522667 is about 25603.1768927217. The cubic root of 655522667 is about 868.6854976039.

The spelling of 655522667 in words is "six hundred fifty-five million, five hundred twenty-two thousand, six hundred sixty-seven".