11513204500550 has 24 divisors (see below), whose sum is σ = 21438867559032. Its totient is φ = 4600054448000.

The previous prime is 11513204500549. The next prime is 11513204500573. The reversal of 11513204500550 is 5500540231511.

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, 130639316 + ... + 130727415.

It is an arithmetic number, because the mean of its divisors is an integer number (893286148293).

Almost surely, 2^{11513204500550} is an apocalyptic number.

11513204500550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11513204500550 is a deficient number, since it is larger than the sum of its proper divisors (9925663058482).

11513204500550 is a wasteful number, since it uses less digits than its factorization.

11513204500550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261367624 (or 261367619 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 11513204500550 in words is "eleven trillion, five hundred thirteen billion, two hundred four million, five hundred thousand, five hundred fifty".