1000661500506 has 16 divisors (see below), whose sum is σ = 2001353982048. Its totient is φ = 333548670000.

The previous prime is 1000661500493. The next prime is 1000661500523. The reversal of 1000661500506 is 6050051660001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859920 + ... + 1655531.

It is an arithmetic number, because the mean of its divisors is an integer number (125084623878).

Almost surely, 2^{1000661500506} is an apocalyptic number.

1000661500506 is an abundant number, since it is smaller than the sum of its proper divisors (1000692481542).

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

1000661500506 is a wasteful number, since it uses less digits than its factorization.

1000661500506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581757.

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 1000661500506 in words is "one trillion, six hundred sixty-one million, five hundred thousand, five hundred six".