11552152521455 has 96 divisors (see below), whose sum is σ = 19078218216960. Its totient is φ = 6519794042880.

The previous prime is 11552152521451. The next prime is 11552152521527. The reversal of 11552152521455 is 55412525125511.

It is not a de Polignac number, because 11552152521455 - 2² = 11552152521451 is a prime.

It is a super-2 number, since 2×11552152521455² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11552152521451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 186500 + ... + 4810310.

It is an arithmetic number, because the mean of its divisors is an integer number (198731439760).

Almost surely, 2^{11552152521455} is an apocalyptic number.

11552152521455 is a deficient number, since it is larger than the sum of its proper divisors (7526065695505).

11552152521455 is a wasteful number, since it uses less digits than its factorization.

11552152521455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623889 (or 4623872 counting only the distinct ones).

The product of its digits is 500000, while the sum is 44.

Adding to 11552152521455 its reverse (55412525125511), we get a palindrome (66964677646966).

The spelling of 11552152521455 in words is "eleven trillion, five hundred fifty-two billion, one hundred fifty-two million, five hundred twenty-one thousand, four hundred fifty-five".