11555150420564 has 6 divisors (see below), whose sum is σ = 20221513235994. Its totient is φ = 5777575210280.

The previous prime is 11555150420551. The next prime is 11555150420581. The reversal of 11555150420564 is 46502405155511.

It can be written as a sum of positive squares in only one way, i.e., 10832918995600 + 722231424964 = 3291340^2 + 849842^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444393802567 + ... + 1444393802574.

It is an arithmetic number, because the mean of its divisors is an integer number (3370252205999).

Almost surely, 2^{11555150420564} is an apocalyptic number.

It is an amenable number.

11555150420564 is a deficient number, since it is larger than the sum of its proper divisors (8666362815430).

11555150420564 is a wasteful number, since it uses less digits than its factorization.

11555150420564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888787605145 (or 2888787605143 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 44.

The spelling of 11555150420564 in words is "eleven trillion, five hundred fifty-five billion, one hundred fifty million, four hundred twenty thousand, five hundred sixty-four".