655706670 has 16 divisors (see below), whose sum is σ = 1573696080. Its totient is φ = 174855104.

The previous prime is 655706657. The next prime is 655706683. The reversal of 655706670 is 76607556.

It is an interprime number because it is at equal distance from previous prime (655706657) and next prime (655706683).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10928415 + ... + 10928474.

It is an arithmetic number, because the mean of its divisors is an integer number (98356005).

Almost surely, 2^655706670 is an apocalyptic number.

655706670 is an abundant number, since it is smaller than the sum of its proper divisors (917989410).

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

655706670 is a wasteful number, since it uses less digits than its factorization.

655706670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21856899.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 655706670 is about 25606.7700032628. The cubic root of 655706670 is about 868.7667690292.

The spelling of 655706670 in words is "six hundred fifty-five million, seven hundred six thousand, six hundred seventy".