11555011015641 has 6 divisors (see below), whose sum is σ = 16690571467050. Its totient is φ = 7703340677088.

The previous prime is 11555011015607. The next prime is 11555011015643. The reversal of 11555011015641 is 14651011055511.

11555011015641 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 5 + 0 + 1 + 1 + 0 + 1 + 5 + 641 = 666.

11555011015641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9883604192400 + 1671406823241 = 3143820^2 + 1292829^2 .

It is not a de Polignac number, because 11555011015641 - 2⁹ = 11555011015129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11555011015596 and 11555011015605.

It is not an unprimeable number, because it can be changed into a prime (11555011015643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 641945056416 + ... + 641945056433.

It is an arithmetic number, because the mean of its divisors is an integer number (2781761911175).

Almost surely, 2^{11555011015641} is an apocalyptic number.

It is an amenable number.

11555011015641 is a deficient number, since it is larger than the sum of its proper divisors (5135560451409).

11555011015641 is a wasteful number, since it uses less digits than its factorization.

11555011015641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283890112855 (or 1283890112852 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 36.

The spelling of 11555011015641 in words is "eleven trillion, five hundred fifty-five billion, eleven million, fifteen thousand, six hundred forty-one".