11363221640 has 16 divisors (see below), whose sum is σ = 25567248780. Its totient is φ = 4545288640.

The previous prime is 11363221633. The next prime is 11363221657. The reversal of 11363221640 is 4612236311.

It can be written as a sum of positive squares in 2 ways, for example, as 11355459844 + 7761796 = 106562^2 + 2786^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 142040231 + ... + 142040310.

Almost surely, 2^11363221640 is an apocalyptic number.

11363221640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11363221640 is an abundant number, since it is smaller than the sum of its proper divisors (14204027140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11363221640 is a wasteful number, since it uses less digits than its factorization.

11363221640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284080552 (or 284080548 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 11363221640 its reverse (4612236311), we get a palindrome (15975457951).

The spelling of 11363221640 in words is "eleven billion, three hundred sixty-three million, two hundred twenty-one thousand, six hundred forty".