11005505612 has 24 divisors (see below), whose sum is σ = 20105118432. Its totient is φ = 5261379200.

The previous prime is 11005505573. The next prime is 11005505617. The reversal of 11005505612 is 21650550011.

It is a super-2 number, since 2×11005505612² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11005505617) 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, 218312 + ... + 263952.

It is an arithmetic number, because the mean of its divisors is an integer number (837713268).

Almost surely, 2^11005505612 is an apocalyptic number.

It is an amenable number.

11005505612 is a deficient number, since it is larger than the sum of its proper divisors (9099612820).

11005505612 is a wasteful number, since it uses less digits than its factorization.

11005505612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48289 (or 48287 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 11005505612 in words is "eleven billion, five million, five hundred five thousand, six hundred twelve".