11443566380 has 12 divisors (see below), whose sum is σ = 24031489440. Its totient is φ = 4577426544.

The previous prime is 11443566353. The next prime is 11443566401. The reversal of 11443566380 is 8366534411.

It is a super-2 number, since 2×11443566380² (a number of 21 digits) contains 22 as substring.

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, 286089140 + ... + 286089179.

It is an arithmetic number, because the mean of its divisors is an integer number (2002624120).

Almost surely, 2^11443566380 is an apocalyptic number.

11443566380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11443566380 is an abundant number, since it is smaller than the sum of its proper divisors (12587923060).

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

11443566380 is a wasteful number, since it uses less digits than its factorization.

11443566380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572178328 (or 572178326 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 11443566380 in words is "eleven billion, four hundred forty-three million, five hundred sixty-six thousand, three hundred eighty".