1131563642666 has 32 divisors (see below), whose sum is σ = 1761777216000. Its totient is φ = 544438397440.

The previous prime is 1131563642639. The next prime is 1131563642719. The reversal of 1131563642666 is 6662463651311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24550010 + ... + 24596058.

It is an arithmetic number, because the mean of its divisors is an integer number (55055538000).

Almost surely, 2^{1131563642666} is an apocalyptic number.

1131563642666 is a deficient number, since it is larger than the sum of its proper divisors (630213573334).

1131563642666 is a wasteful number, since it uses less digits than its factorization.

1131563642666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47494.

The product of its digits is 2799360, while the sum is 50.

The spelling of 1131563642666 in words is "one trillion, one hundred thirty-one billion, five hundred sixty-three million, six hundred forty-two thousand, six hundred sixty-six".