11663047820 has 24 divisors (see below), whose sum is σ = 24496684800. Its totient is φ = 4664403072.

The previous prime is 11663047817. The next prime is 11663047859. The reversal of 11663047820 is 2874036611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73616 + ... + 169544.

It is an arithmetic number, because the mean of its divisors is an integer number (1020695200).

Almost surely, 2^11663047820 is an apocalyptic number.

11663047820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11663047820 is an abundant number, since it is smaller than the sum of its proper divisors (12833636980).

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

11663047820 is a wasteful number, since it uses less digits than its factorization.

11663047820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102017 (or 102015 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 11663047820 in words is "eleven billion, six hundred sixty-three million, forty-seven thousand, eight hundred twenty".