11206615550 has 24 divisors (see below), whose sum is σ = 22447714296. Its totient is φ = 4137827040.

The previous prime is 11206615523. The next prime is 11206615559. The reversal of 11206615550 is 5551660211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11206615559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8619824 + ... + 8621123.

It is an arithmetic number, because the mean of its divisors is an integer number (935321429).

Almost surely, 2^11206615550 is an apocalyptic number.

11206615550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11206615550 is an abundant number, since it is smaller than the sum of its proper divisors (11241098746).

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

11206615550 is a wasteful number, since it uses less digits than its factorization.

11206615550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17240972 (or 17240967 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 32.

It can be divided in two parts, 1120661 and 5550, that added together give a palindrome (1126211).

The spelling of 11206615550 in words is "eleven billion, two hundred six million, six hundred fifteen thousand, five hundred fifty".