5541398664 has 32 divisors (see below), whose sum is σ = 13885080000. Its totient is φ = 1842921792.

The previous prime is 5541398663. The next prime is 5541398669. The reversal of 5541398664 is 4668931455.

It is not an unprimeable number, because it can be changed into a prime (5541398663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252439 + ... + 273510.

It is an arithmetic number, because the mean of its divisors is an integer number (433908750).

Almost surely, 2^5541398664 is an apocalyptic number.

It is an amenable number.

5541398664 is an abundant number, since it is smaller than the sum of its proper divisors (8343681336).

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

5541398664 is a wasteful number, since it uses less digits than its factorization.

5541398664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526397 (or 526393 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The square root of 5541398664 is about 74440.5713572914. The cubic root of 5541398664 is about 1769.5919414270.

The spelling of 5541398664 in words is "five billion, five hundred forty-one million, three hundred ninety-eight thousand, six hundred sixty-four".