1666344002 has 16 divisors (see below), whose sum is σ = 2624304960. Its totient is φ = 792433488.

The previous prime is 1666343999. The next prime is 1666344007. The reversal of 1666344002 is 2004436661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666344002.

It is not an unprimeable number, because it can be changed into a prime (1666344007) 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, 210518 + ... + 218289.

It is an arithmetic number, because the mean of its divisors is an integer number (164019060).

Almost surely, 2^1666344002 is an apocalyptic number.

1666344002 is a deficient number, since it is larger than the sum of its proper divisors (957960958).

1666344002 is a wasteful number, since it uses less digits than its factorization.

1666344002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428905.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1666344002 is about 40820.8770361441. The cubic root of 1666344002 is about 1185.5545843058.

The spelling of 1666344002 in words is "one billion, six hundred sixty-six million, three hundred forty-four thousand, two".