68572566 has 24 divisors (see below), whose sum is σ = 151379280. Its totient is φ = 22425936.

The previous prime is 68572561. The next prime is 68572571. The reversal of 68572566 is 66527586.

68572566 is a `hidden beast` number, since 6 + 85 + 7 + 2 + 566 = 666.

It is an interprime number because it is at equal distance from previous prime (68572561) and next prime (68572571).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68572561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34986 + ... + 36893.

It is an arithmetic number, because the mean of its divisors is an integer number (6307470).

Almost surely, 2^68572566 is an apocalyptic number.

68572566 is an abundant number, since it is smaller than the sum of its proper divisors (82806714).

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

68572566 is a wasteful number, since it uses less digits than its factorization.

68572566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71940 (or 71937 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 68572566 is about 8280.8553905982. The cubic root of 68572566 is about 409.3079063441.

The spelling of 68572566 in words is "sixty-eight million, five hundred seventy-two thousand, five hundred sixty-six".