12553155511 has 8 divisors (see below), whose sum is σ = 13521362400. Its totient is φ = 11585317152.

The previous prime is 12553155509. The next prime is 12553155539. The reversal of 12553155511 is 11555135521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12553155511 - 2¹ = 12553155509 is a prime.

It is a super-2 number, since 2×12553155511² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553155541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19240 + ... + 159613.

It is an arithmetic number, because the mean of its divisors is an integer number (1690170300).

Almost surely, 2^12553155511 is an apocalyptic number.

12553155511 is a deficient number, since it is larger than the sum of its proper divisors (968206889).

12553155511 is a wasteful number, since it uses less digits than its factorization.

12553155511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184265.

The product of its digits is 18750, while the sum is 34.

The spelling of 12553155511 in words is "twelve billion, five hundred fifty-three million, one hundred fifty-five thousand, five hundred eleven".