5550664809690 has 576 divisors, whose sum is σ = 19939225033728. Its totient is φ = 1042001832960.

The previous prime is 5550664809587. The next prime is 5550664809691. The reversal of 5550664809690 is 969084660555.

5550664809690 is a `hidden beast` number, since 5 + 5 + 5 + 0 + 66 + 480 + 9 + 6 + 90 = 666.

It is a super-2 number, since 2×5550664809690² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (5550664809691) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 46516944 + ... + 46636116.

It is an arithmetic number, because the mean of its divisors is an integer number (34616710128).

Almost surely, 2^{5550664809690} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5550664809690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9969612516864).

5550664809690 is an abundant number, since it is smaller than the sum of its proper divisors (14388560224038).

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

5550664809690 is a wasteful number, since it uses less digits than its factorization.

5550664809690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119275 (or 119261 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 63.

The spelling of 5550664809690 in words is "five trillion, five hundred fifty billion, six hundred sixty-four million, eight hundred nine thousand, six hundred ninety".