1001113268665 has 16 divisors (see below), whose sum is σ = 1319545180800. Its totient is φ = 725749846272.

The previous prime is 1001113268621. The next prime is 1001113268671. The reversal of 1001113268665 is 5668623111001.

It is a cyclic number.

It is not a de Polignac number, because 1001113268665 - 2¹³ = 1001113260473 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 229085520 + ... + 229089889.

It is an arithmetic number, because the mean of its divisors is an integer number (82471573800).

Almost surely, 2^{1001113268665} is an apocalyptic number.

It is an amenable number.

1001113268665 is a deficient number, since it is larger than the sum of its proper divisors (318431912135).

1001113268665 is a wasteful number, since it uses less digits than its factorization.

1001113268665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458175456.

The product of its (nonzero) digits is 51840, while the sum is 40.

Adding to 1001113268665 its reverse (5668623111001), we get a palindrome (6669736379666).

The spelling of 1001113268665 in words is "one trillion, one billion, one hundred thirteen million, two hundred sixty-eight thousand, six hundred sixty-five".