11505312154552 has 16 divisors (see below), whose sum is σ = 21572533000440. Its totient is φ = 5752636687776.

The previous prime is 11505312154541. The next prime is 11505312154621. The reversal of 11505312154552 is 25545121350511.

It is a super-3 number, since 3×11505312154552³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274918 + ... + 4804810.

Almost surely, 2^{11505312154552} is an apocalyptic number.

It is an amenable number.

11505312154552 is a deficient number, since it is larger than the sum of its proper divisors (10067220845888).

11505312154552 is a wasteful number, since it uses less digits than its factorization.

11505312154552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847382 (or 4847378 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 40.

The spelling of 11505312154552 in words is "eleven trillion, five hundred five billion, three hundred twelve million, one hundred fifty-four thousand, five hundred fifty-two".