11661063016 has 16 divisors (see below), whose sum is σ = 22372970400. Its totient is φ = 5694937584.

The previous prime is 11661062993. The next prime is 11661063017. The reversal of 11661063016 is 61036016611.

It is not an unprimeable number, because it can be changed into a prime (11661063017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16948876 + ... + 16949563.

It is an arithmetic number, because the mean of its divisors is an integer number (1398310650).

Almost surely, 2^11661063016 is an apocalyptic number.

It is an amenable number.

11661063016 is a deficient number, since it is larger than the sum of its proper divisors (10711907384).

11661063016 is a wasteful number, since it uses less digits than its factorization.

11661063016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33898488 (or 33898484 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 11661063016 its reverse (61036016611), we get a palindrome (72697079627).

The spelling of 11661063016 in words is "eleven billion, six hundred sixty-one million, sixty-three thousand, sixteen".