5551474069440 has 896 divisors, whose sum is σ = 22274510899200. Its totient is φ = 1290303406080.

The previous prime is 5551474069391. The next prime is 5551474069447. The reversal of 5551474069440 is 449604741555.

5551474069440 is a `hidden beast` number, since 5 + 5 + 5 + 147 + 406 + 94 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551474069447) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 667962885 + ... + 667971195.

It is an arithmetic number, because the mean of its divisors is an integer number (24859945200).

Almost surely, 2^{5551474069440} 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 5551474069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11137255449600).

5551474069440 is an abundant number, since it is smaller than the sum of its proper divisors (16723036829760).

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

5551474069440 is a wasteful number, since it uses less digits than its factorization.

5551474069440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682 (or 8666 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 5551474069440 in words is "five trillion, five hundred fifty-one billion, four hundred seventy-four million, sixty-nine thousand, four hundred forty".