11212554656 has 12 divisors (see below), whose sum is σ = 22074717042. Its totient is φ = 5606277312.

The previous prime is 11212554653. The next prime is 11212554667. The reversal of 11212554656 is 65645521211.

It can be written as a sum of positive squares in only one way, i.e., 7210727056 + 4001827600 = 84916^2 + 63260^2 .

It is not an unprimeable number, because it can be changed into a prime (11212554653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175196135 + ... + 175196198.

Almost surely, 2^11212554656 is an apocalyptic number.

11212554656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11212554656 is a deficient number, since it is larger than the sum of its proper divisors (10862162386).

11212554656 is an equidigital number, since it uses as much as digits as its factorization.

11212554656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350392343 (or 350392335 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The spelling of 11212554656 in words is "eleven billion, two hundred twelve million, five hundred fifty-four thousand, six hundred fifty-six".