11461312556 has 24 divisors (see below), whose sum is σ = 20153901600. Its totient is φ = 5703115392.

The previous prime is 11461312553. The next prime is 11461312561. The reversal of 11461312556 is 65521316411.

It is not an unprimeable number, because it can be changed into a prime (11461312553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802970 + ... + 817118.

It is an arithmetic number, because the mean of its divisors is an integer number (839745900).

Almost surely, 2^11461312556 is an apocalyptic number.

It is an amenable number.

11461312556 is a deficient number, since it is larger than the sum of its proper divisors (8692589044).

11461312556 is a wasteful number, since it uses less digits than its factorization.

11461312556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15113 (or 15111 counting only the distinct ones).

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

Adding to 11461312556 its reverse (65521316411), we get a palindrome (76982628967).

The spelling of 11461312556 in words is "eleven billion, four hundred sixty-one million, three hundred twelve thousand, five hundred fifty-six".