5527221521666 has 32 divisors (see below), whose sum is σ = 9225180211968. Its totient is φ = 2467640710080.

The previous prime is 5527221521581. The next prime is 5527221521827. The reversal of 5527221521666 is 6661251227255.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28148966 + ... + 28344641.

It is an arithmetic number, because the mean of its divisors is an integer number (288286881624).

Almost surely, 2^{5527221521666} is an apocalyptic number.

5527221521666 is a deficient number, since it is larger than the sum of its proper divisors (3697958690302).

5527221521666 is a wasteful number, since it uses less digits than its factorization.

5527221521666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56493746.

The product of its digits is 3024000, while the sum is 50.

The spelling of 5527221521666 in words is "five trillion, five hundred twenty-seven billion, two hundred twenty-one million, five hundred twenty-one thousand, six hundred sixty-six".