1001000115660 has 96 divisors (see below), whose sum is σ = 2914989557760. Its totient is φ = 256431322368.

The previous prime is 1001000115653. The next prime is 1001000115671. The reversal of 1001000115660 is 665110001001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2678424 + ... + 3029183.

It is an arithmetic number, because the mean of its divisors is an integer number (30364474560).

Almost surely, 2^{1001000115660} is an apocalyptic number.

1001000115660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001000115660 is an abundant number, since it is smaller than the sum of its proper divisors (1913989442100).

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

1001000115660 is a wasteful number, since it uses less digits than its factorization.

1001000115660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707735 (or 5707733 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 1001000115660 its reverse (665110001001), we get a palindrome (1666110116661).

The spelling of 1001000115660 in words is "one trillion, one billion, one hundred fifteen thousand, six hundred sixty".