1065566205 has 64 divisors (see below), whose sum is σ = 2188166400. Its totient is φ = 486236160.

The previous prime is 1065566197. The next prime is 1065566213. The reversal of 1065566205 is 5026655601.

It is a happy number.

1065566205 is a `hidden beast` number, since 10 + 65 + 566 + 20 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1065566197) and next prime (1065566213).

It is not a de Polignac number, because 1065566205 - 2³ = 1065566197 is a prime.

It is a super-2 number, since 2×1065566205² = 2270862674476204050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1065566205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4141 + ... + 46349.

It is an arithmetic number, because the mean of its divisors is an integer number (34190100).

Almost surely, 2^1065566205 is an apocalyptic number.

1065566205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1065566205 is an abundant number, since it is smaller than the sum of its proper divisors (1122600195).

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

1065566205 is a wasteful number, since it uses less digits than its factorization.

1065566205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42251 (or 42245 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1065566205 is about 32643.0115798160. The cubic root of 1065566205 is about 1021.3944163891.

The spelling of 1065566205 in words is "one billion, sixty-five million, five hundred sixty-six thousand, two hundred five".