11807053566 has 32 divisors (see below), whose sum is σ = 29440965888. Its totient is φ = 3066767040.

The previous prime is 11807053543. The next prime is 11807053567. The reversal of 11807053566 is 66535070811.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11807053567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12777735 + ... + 12778658.

It is an arithmetic number, because the mean of its divisors is an integer number (920030184).

Almost surely, 2^11807053566 is an apocalyptic number.

11807053566 is an abundant number, since it is smaller than the sum of its proper divisors (17633912322).

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

11807053566 is a wasteful number, since it uses less digits than its factorization.

11807053566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25556416.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 11807053566 in words is "eleven billion, eight hundred seven million, fifty-three thousand, five hundred sixty-six".