655576670 has 32 divisors (see below), whose sum is σ = 1363780800. Its totient is φ = 222241536.

The previous prime is 655576657. The next prime is 655576673. The reversal of 655576670 is 76675556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655576673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46385 + ... + 58844.

It is an arithmetic number, because the mean of its divisors is an integer number (42618150).

Almost surely, 2^655576670 is an apocalyptic number.

655576670 is an abundant number, since it is smaller than the sum of its proper divisors (708204130).

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

655576670 is a wasteful number, since it uses less digits than its factorization.

655576670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105332.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The square root of 655576670 is about 25604.2314862212. The cubic root of 655576670 is about 868.7093515132.

It can be divided in two parts, 65557 and 6670, that added together give a palindrome (72227).

The spelling of 655576670 in words is "six hundred fifty-five million, five hundred seventy-six thousand, six hundred seventy".