11551321361600 has 42 divisors (see below), whose sum is σ = 28423470129324. Its totient is φ = 4620528544000.

The previous prime is 11551321361579. The next prime is 11551321361611. The reversal of 11551321361600 is 616312315511.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3609786326 + ... + 3609789525.

Almost surely, 2^{11551321361600} is an apocalyptic number.

11551321361600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11551321361600 is an abundant number, since it is smaller than the sum of its proper divisors (16872148767724).

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

11551321361600 is an equidigital number, since it uses as much as digits as its factorization.

11551321361600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7219575873 (or 7219575858 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The spelling of 11551321361600 in words is "eleven trillion, five hundred fifty-one billion, three hundred twenty-one million, three hundred sixty-one thousand, six hundred".