655164270 has 96 divisors (see below), whose sum is σ = 1827165600. Its totient is φ = 162369792.

The previous prime is 655164233. The next prime is 655164271. The reversal of 655164270 is 72461556.

It is a happy number.

655164270 is a `hidden beast` number, since 6 + 5 + 5 + 1 + 642 + 7 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655164271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87016 + ... + 94244.

It is an arithmetic number, because the mean of its divisors is an integer number (19032975).

Almost surely, 2^655164270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655164270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (913582800).

655164270 is an abundant number, since it is smaller than the sum of its proper divisors (1172001330).

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

655164270 is a wasteful number, since it uses less digits than its factorization.

655164270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7314 (or 7311 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 655164270 is about 25596.1768629614. The cubic root of 655164270 is about 868.5271552367.

The spelling of 655164270 in words is "six hundred fifty-five million, one hundred sixty-four thousand, two hundred seventy".