5667266721 has 32 divisors (see below), whose sum is σ = 7822983168. Its totient is φ = 3647373120.

The previous prime is 5667266713. The next prime is 5667266741. The reversal of 5667266721 is 1276627665.

It is not a de Polignac number, because 5667266721 - 2³ = 5667266713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5667266711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4603176 + ... + 4604406.

It is an arithmetic number, because the mean of its divisors is an integer number (244468224).

Almost surely, 2^5667266721 is an apocalyptic number.

It is an amenable number.

5667266721 is a deficient number, since it is larger than the sum of its proper divisors (2155716447).

5667266721 is a wasteful number, since it uses less digits than its factorization.

5667266721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its digits is 1270080, while the sum is 48.

The square root of 5667266721 is about 75281.2507932752. The cubic root of 5667266721 is about 1782.8900071988.

The spelling of 5667266721 in words is "five billion, six hundred sixty-seven million, two hundred sixty-six thousand, seven hundred twenty-one".