11320420564 has 24 divisors (see below), whose sum is σ = 21422378880. Its totient is φ = 5213909376.

The previous prime is 11320420549. The next prime is 11320420583. The reversal of 11320420564 is 46502402311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1767834 + ... + 1774225.

It is an arithmetic number, because the mean of its divisors is an integer number (892599120).

Almost surely, 2^11320420564 is an apocalyptic number.

It is an amenable number.

11320420564 is a deficient number, since it is larger than the sum of its proper divisors (10101958316).

11320420564 is a wasteful number, since it uses less digits than its factorization.

11320420564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542127 (or 3542125 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 11320420564 its reverse (46502402311), we get a palindrome (57822822875).

The spelling of 11320420564 in words is "eleven billion, three hundred twenty million, four hundred twenty thousand, five hundred sixty-four".