1006347500066 has 4 divisors (see below), whose sum is σ = 1509521250102. Its totient is φ = 503173750032.

The previous prime is 1006347500027. The next prime is 1006347500077. The reversal of 1006347500066 is 6600057436001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 815732306041 + 190615194025 = 903179^2 + 436595^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251586875015 + ... + 251586875018.

Almost surely, 2^{1006347500066} is an apocalyptic number.

1006347500066 is a deficient number, since it is larger than the sum of its proper divisors (503173750036).

1006347500066 is an equidigital number, since it uses as much as digits as its factorization.

1006347500066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503173750035.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 1006347500066 in words is "one trillion, six billion, three hundred forty-seven million, five hundred thousand, sixty-six".