1065606161 has 8 divisors (see below), whose sum is σ = 1072491264. Its totient is φ = 1058741280.

The previous prime is 1065606149. The next prime is 1065606163. The reversal of 1065606161 is 1616065601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1065606161 - 2⁶ = 1065606097 is a prime.

It is a super-2 number, since 2×1065606161² = 2271032980722315842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065606163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108776 + ... + 118166.

It is an arithmetic number, because the mean of its divisors is an integer number (134061408).

Almost surely, 2^1065606161 is an apocalyptic number.

It is an amenable number.

1065606161 is a deficient number, since it is larger than the sum of its proper divisors (6885103).

1065606161 is an equidigital number, since it uses as much as digits as its factorization.

1065606161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1065606161 is about 32643.6235886888. The cubic root of 1065606161 is about 1021.4071827866.

The spelling of 1065606161 in words is "one billion, sixty-five million, six hundred six thousand, one hundred sixty-one".