11635055505 has 24 divisors (see below), whose sum is σ = 20220115968. Its totient is φ = 6189151776.

The previous prime is 11635055449. The next prime is 11635055513. The reversal of 11635055505 is 50555053611.

11635055505 is a `hidden beast` number, since 11 + 635 + 0 + 5 + 5 + 5 + 0 + 5 = 666.

It is not a de Polignac number, because 11635055505 - 2¹⁰ = 11635054481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11635055505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320307 + ... + 354776.

It is an arithmetic number, because the mean of its divisors is an integer number (842504832).

Almost surely, 2^11635055505 is an apocalyptic number.

11635055505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11635055505 is a deficient number, since it is larger than the sum of its proper divisors (8585060463).

11635055505 is a wasteful number, since it uses less digits than its factorization.

11635055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675477 (or 675474 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

The spelling of 11635055505 in words is "eleven billion, six hundred thirty-five million, fifty-five thousand, five hundred five".