11648436550 has 48 divisors (see below), whose sum is σ = 22999019040. Its totient is φ = 4374120960.

The previous prime is 11648436523. The next prime is 11648436559. The reversal of 11648436550 is 5563484611.

It is a junction number, because it is equal to n+sod(n) for n = 11648436497 and 11648436506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11648436559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320191 + ... + 354709.

It is an arithmetic number, because the mean of its divisors is an integer number (479146230).

Almost surely, 2^11648436550 is an apocalyptic number.

11648436550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11648436550 is a deficient number, since it is larger than the sum of its proper divisors (11350582490).

11648436550 is a wasteful number, since it uses less digits than its factorization.

11648436550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34945 (or 34940 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 11648436550 in words is "eleven billion, six hundred forty-eight million, four hundred thirty-six thousand, five hundred fifty".