11326331550 has 24 divisors (see below), whose sum is σ = 28089302616. Its totient is φ = 3020355040.

The previous prime is 11326331543. The next prime is 11326331573. The reversal of 11326331550 is 5513362311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37754289 + ... + 37754588.

It is an arithmetic number, because the mean of its divisors is an integer number (1170387609).

Almost surely, 2^11326331550 is an apocalyptic number.

11326331550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11326331550 is an abundant number, since it is smaller than the sum of its proper divisors (16762971066).

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

11326331550 is a wasteful number, since it uses less digits than its factorization.

11326331550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75508892 (or 75508887 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 11326331550 its reverse (5513362311), we get a palindrome (16839693861).

The spelling of 11326331550 in words is "eleven billion, three hundred twenty-six million, three hundred thirty-one thousand, five hundred fifty".