1006640165602 has 16 divisors (see below), whose sum is σ = 1526748615000. Its totient is φ = 497732272128.

The previous prime is 1006640165591. The next prime is 1006640165623. The reversal of 1006640165602 is 2065610466001.

It can be written as a sum of positive squares in 4 ways, for example, as 949414435641 + 57225729961 = 974379^2 + 239219^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834903 + ... + 2319514.

Almost surely, 2^{1006640165602} is an apocalyptic number.

1006640165602 is a deficient number, since it is larger than the sum of its proper divisors (520108449398).

1006640165602 is a wasteful number, since it uses less digits than its factorization.

1006640165602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155765.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 1006640165602 in words is "one trillion, six billion, six hundred forty million, one hundred sixty-five thousand, six hundred two".