1066120002 has 16 divisors (see below), whose sum is σ = 2369155680. Its totient is φ = 355373316.

The previous prime is 1066119983. The next prime is 1066120009. The reversal of 1066120002 is 2000216601.

It is a happy number.

1066120002 is a `hidden beast` number, since 1 + 0 + 661 + 2 + 0 + 0 + 0 + 2 = 666.

It is a super-2 number, since 2×1066120002² = 2273223717328960008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1066120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9871428 + ... + 9871535.

It is an arithmetic number, because the mean of its divisors is an integer number (148072230).

Almost surely, 2^1066120002 is an apocalyptic number.

1066120002 is an abundant number, since it is smaller than the sum of its proper divisors (1303035678).

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

1066120002 is a wasteful number, since it uses less digits than its factorization.

1066120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19742974 (or 19742968 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1066120002 is about 32651.4931052165. The cubic root of 1066120002 is about 1021.5713324101.

Adding to 1066120002 its reverse (2000216601), we get a palindrome (3066336603).

The spelling of 1066120002 in words is "one billion, sixty-six million, one hundred twenty thousand, two".