5448811666 has 4 divisors (see below), whose sum is σ = 8173217502. Its totient is φ = 2724405832.

The previous prime is 5448811597. The next prime is 5448811673. The reversal of 5448811666 is 6661188445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5325934441 + 122877225 = 72979^2 + 11085^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1362202915 + ... + 1362202918.

Almost surely, 2^5448811666 is an apocalyptic number.

5448811666 is a deficient number, since it is larger than the sum of its proper divisors (2724405836).

5448811666 is a wasteful number, since it uses less digits than its factorization.

5448811666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724405835.

The product of its digits is 1105920, while the sum is 49.

The square root of 5448811666 is about 73816.0664489784. The cubic root of 5448811666 is about 1759.6809496131.

The spelling of 5448811666 in words is "five billion, four hundred forty-eight million, eight hundred eleven thousand, six hundred sixty-six".