230617566 has 12 divisors (see below), whose sum is σ = 499671432. Its totient is φ = 76872516.

The previous prime is 230617561. The next prime is 230617567. The reversal of 230617566 is 665716032.

230617566 is a `hidden beast` number, since 2 + 30 + 61 + 7 + 566 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 230617566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230617561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6406026 + ... + 6406061.

It is an arithmetic number, because the mean of its divisors is an integer number (41639286).

Almost surely, 2^230617566 is an apocalyptic number.

230617566 is an abundant number, since it is smaller than the sum of its proper divisors (269053866).

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

230617566 is a wasteful number, since it uses less digits than its factorization.

230617566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12812095 (or 12812092 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 230617566 is about 15186.0977871210. The cubic root of 230617566 is about 613.2404515015.

It can be divided in two parts, 230 and 617566, that added together give a square (617796 = 786²).

The spelling of 230617566 in words is "two hundred thirty million, six hundred seventeen thousand, five hundred sixty-six".