11311246556 has 12 divisors (see below), whose sum is σ = 19805107560. Its totient is φ = 5652644400.

The previous prime is 11311246523. The next prime is 11311246561. The reversal of 11311246556 is 65564211311.

It is a super-2 number, since 2×11311246556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 736166 + ... + 751373.

It is an arithmetic number, because the mean of its divisors is an integer number (1650425630).

Almost surely, 2^11311246556 is an apocalyptic number.

It is an amenable number.

11311246556 is a deficient number, since it is larger than the sum of its proper divisors (8493861004).

11311246556 is a wasteful number, since it uses less digits than its factorization.

11311246556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489444 (or 1489442 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

Adding to 11311246556 its reverse (65564211311), we get a palindrome (76875457867).

The spelling of 11311246556 in words is "eleven billion, three hundred eleven million, two hundred forty-six thousand, five hundred fifty-six".