11520642120566 has 8 divisors (see below), whose sum is σ = 17280978831480. Its totient is φ = 5760315843408.

The previous prime is 11520642120551. The next prime is 11520642120667. The reversal of 11520642120566 is 66502124602511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11520642120566² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358705 + ... + 4988723.

It is an arithmetic number, because the mean of its divisors is an integer number (2160122353935).

Almost surely, 2^{11520642120566} is an apocalyptic number.

11520642120566 is a deficient number, since it is larger than the sum of its proper divisors (5760336710914).

11520642120566 is a wasteful number, since it uses less digits than its factorization.

11520642120566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216878.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 11520642120566 in words is "eleven trillion, five hundred twenty billion, six hundred forty-two million, one hundred twenty thousand, five hundred sixty-six".