5551571266 has 16 divisors (see below), whose sum is σ = 8494352640. Its totient is φ = 2720633760.

The previous prime is 5551571261. The next prime is 5551571273. The reversal of 5551571266 is 6621751555.

It is not an unprimeable number, because it can be changed into a prime (5551571261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106590 + ... + 149881.

It is an arithmetic number, because the mean of its divisors is an integer number (530897040).

Almost surely, 2^5551571266 is an apocalyptic number.

5551571266 is a deficient number, since it is larger than the sum of its proper divisors (2942781374).

5551571266 is a wasteful number, since it uses less digits than its factorization.

5551571266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256689.

The product of its digits is 315000, while the sum is 43.

The square root of 5551571266 is about 74508.8670293677. The cubic root of 5551571266 is about 1770.6741201047.

The spelling of 5551571266 in words is "five billion, five hundred fifty-one million, five hundred seventy-one thousand, two hundred sixty-six".