11552001445511 has 4 divisors (see below), whose sum is σ = 11552008383552. Its totient is φ = 11551994507472.

The previous prime is 11552001445507. The next prime is 11552001445597. The reversal of 11552001445511 is 11554410025511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11552001445511 - 2² = 11552001445507 is a prime.

It is a super-2 number, since 2×11552001445511² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11552001445111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693011 + ... + 4856363.

It is an arithmetic number, because the mean of its divisors is an integer number (2888002095888).

Almost surely, 2^{11552001445511} is an apocalyptic number.

11552001445511 is a deficient number, since it is larger than the sum of its proper divisors (6938041).

11552001445511 is an equidigital number, since it uses as much as digits as its factorization.

11552001445511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938040.

The product of its (nonzero) digits is 20000, while the sum is 35.

The spelling of 11552001445511 in words is "eleven trillion, five hundred fifty-two billion, one million, four hundred forty-five thousand, five hundred eleven".