11565832940 has 24 divisors (see below), whose sum is σ = 24293636640. Its totient is φ = 4625307008.

The previous prime is 11565832933. The next prime is 11565832963. The reversal of 11565832940 is 4923856511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11565832891 and 11565832900.

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, 31784 + ... + 155376.

It is an arithmetic number, because the mean of its divisors is an integer number (1012234860).

Almost surely, 2^11565832940 is an apocalyptic number.

11565832940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11565832940 is an abundant number, since it is smaller than the sum of its proper divisors (12727803700).

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

11565832940 is a wasteful number, since it uses less digits than its factorization.

11565832940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128281 (or 128279 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 11565832940 in words is "eleven billion, five hundred sixty-five million, eight hundred thirty-two thousand, nine hundred forty".