11621520564011 has 8 divisors (see below), whose sum is σ = 11633566713600. Its totient is φ = 11609474870952.

The previous prime is 11621520564001. The next prime is 11621520564037. The reversal of 11621520564011 is 11046502512611.

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

It is a cyclic number.

It is not a de Polignac number, because 11621520564011 - 2¹⁴ = 11621520547627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621520564001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79155476 + ... + 79302158.

It is an arithmetic number, because the mean of its divisors is an integer number (1454195839200).

Almost surely, 2^{11621520564011} is an apocalyptic number.

11621520564011 is a deficient number, since it is larger than the sum of its proper divisors (12046149589).

11621520564011 is an equidigital number, since it uses as much as digits as its factorization.

11621520564011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228265.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 11621520564011 in words is "eleven trillion, six hundred twenty-one billion, five hundred twenty million, five hundred sixty-four thousand, eleven".