11355571984 has 20 divisors (see below), whose sum is σ = 22067900560. Its totient is φ = 5660629920.

The previous prime is 11355571973. The next prime is 11355572023. The reversal of 11355571984 is 48917555311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066794 + ... + 1077385.

It is an arithmetic number, because the mean of its divisors is an integer number (1103395028).

Almost surely, 2^11355571984 is an apocalyptic number.

It is an amenable number.

11355571984 is a deficient number, since it is larger than the sum of its proper divisors (10712328576).

11355571984 is a wasteful number, since it uses less digits than its factorization.

11355571984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144518 (or 2144512 counting only the distinct ones).

The product of its digits is 756000, while the sum is 49.

The spelling of 11355571984 in words is "eleven billion, three hundred fifty-five million, five hundred seventy-one thousand, nine hundred eighty-four".