1065100066 has 4 divisors (see below), whose sum is σ = 1597650102. Its totient is φ = 532550032.

The previous prime is 1065100063. The next prime is 1065100079. The reversal of 1065100066 is 6600015601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6600015601 = 61483 ⋅107347.

It can be written as a sum of positive squares in only one way, i.e., 1029447225 + 35652841 = 32085^2 + 5971^2 .

It is a super-2 number, since 2×1065100066² = 2268876301186408712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065100066.

It is not an unprimeable number, because it can be changed into a prime (1065100063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266275015 + ... + 266275018.

Almost surely, 2^1065100066 is an apocalyptic number.

1065100066 is a deficient number, since it is larger than the sum of its proper divisors (532550036).

1065100066 is an equidigital number, since it uses as much as digits as its factorization.

1065100066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532550035.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1065100066 is about 32635.8708478876. The cubic root of 1065100066 is about 1021.2454560797.

Adding to 1065100066 its reverse (6600015601), we get a palindrome (7665115667).

The spelling of 1065100066 in words is "one billion, sixty-five million, one hundred thousand, sixty-six".