11511341212552 has 8 divisors (see below), whose sum is σ = 21583764773550. Its totient is φ = 5755670606272.

The previous prime is 11511341212519. The next prime is 11511341212619. The reversal of 11511341212552 is 25521214311511.

It can be written as a sum of positive squares in only one way, i.e., 6464641864356 + 5046699348196 = 2542566^2 + 2246486^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×11511341212552⁴ (a number of 53 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719458825777 + ... + 719458825792.

Almost surely, 2^{11511341212552} is an apocalyptic number.

It is an amenable number.

11511341212552 is a deficient number, since it is larger than the sum of its proper divisors (10072423560998).

11511341212552 is a wasteful number, since it uses less digits than its factorization.

11511341212552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438917651575 (or 1438917651571 counting only the distinct ones).

The product of its digits is 12000, while the sum is 34.

The spelling of 11511341212552 in words is "eleven trillion, five hundred eleven billion, three hundred forty-one million, two hundred twelve thousand, five hundred fifty-two".