11663354436 has 12 divisors (see below), whose sum is σ = 27214493712. Its totient is φ = 3887784808.

The previous prime is 11663354411. The next prime is 11663354447. The reversal of 11663354436 is 63445336611.

It is a tau number, because it is divible by the number of its divisors (12).

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, 485973090 + ... + 485973113.

It is an arithmetic number, because the mean of its divisors is an integer number (2267874476).

Almost surely, 2^11663354436 is an apocalyptic number.

It is an amenable number.

11663354436 is an abundant number, since it is smaller than the sum of its proper divisors (15551139276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11663354436 is a wasteful number, since it uses less digits than its factorization.

11663354436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971946210 (or 971946208 counting only the distinct ones).

The product of its digits is 466560, while the sum is 42.

The spelling of 11663354436 in words is "eleven billion, six hundred sixty-three million, three hundred fifty-four thousand, four hundred thirty-six".