5551211128320 has 3360 divisors, whose sum is σ = 24783828233472. Its totient is φ = 1182449664000.

The previous prime is 5551211128301. The next prime is 5551211128349. The reversal of 5551211128320 is 238211121555.

5551211128320 is a `hidden beast` number, since 5 + 5 + 512 + 1 + 112 + 8 + 3 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 91003461090 + ... + 91003461150.

Almost surely, 2^{5551211128320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551211128320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12391914116736).

5551211128320 is an abundant number, since it is smaller than the sum of its proper divisors (19232617105152).

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

5551211128320 is a wasteful number, since it uses less digits than its factorization.

5551211128320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

Adding to 5551211128320 its reverse (238211121555), we get a palindrome (5789422249875).

The spelling of 5551211128320 in words is "five trillion, five hundred fifty-one billion, two hundred eleven million, one hundred twenty-eight thousand, three hundred twenty".