1066640002 has 8 divisors (see below), whose sum is σ = 1651571712. Its totient is φ = 516116100.

The previous prime is 1066639967. The next prime is 1066640009. The reversal of 1066640002 is 2000466601.

It is a happy number.

1066640002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×1066640002² = 2275441787733120008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066640009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8601874 + ... + 8601997.

It is an arithmetic number, because the mean of its divisors is an integer number (206446464).

Almost surely, 2^1066640002 is an apocalyptic number.

1066640002 is a deficient number, since it is larger than the sum of its proper divisors (584931710).

1066640002 is a wasteful number, since it uses less digits than its factorization.

1066640002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17203904.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1066640002 is about 32659.4550168860. The cubic root of 1066640002 is about 1021.7373958765.

The spelling of 1066640002 in words is "one billion, sixty-six million, six hundred forty thousand, two".