5541269371866 has 224 divisors, whose sum is σ = 13347896126400. Its totient is φ = 1719280131840.

The previous prime is 5541269371853. The next prime is 5541269371889. The reversal of 5541269371866 is 6681739621455.

It is a happy number.

5541269371866 is a `hidden beast` number, since 5 + 5 + 412 + 6 + 9 + 37 + 186 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2800034065 + ... + 2800036043.

Almost surely, 2^{5541269371866} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5541269371866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6673948063200).

5541269371866 is an abundant number, since it is smaller than the sum of its proper divisors (7806626754534).

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

5541269371866 is a wasteful number, since it uses less digits than its factorization.

5541269371866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736 (or 3721 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 5541269371866 in words is "five trillion, five hundred forty-one billion, two hundred sixty-nine million, three hundred seventy-one thousand, eight hundred sixty-six".