2666272801 has 2 divisors, whose sum is σ = 2666272802. Its totient is φ = 2666272800.

The previous prime is 2666272787. The next prime is 2666272837. The reversal of 2666272801 is 1082726662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2492006400 + 174266401 = 49920^2 + 13201^2 .

It is a cyclic number.

It is not a de Polignac number, because 2666272801 - 2¹¹ = 2666270753 is a prime.

It is not a weakly prime, because it can be changed into another prime (2666272001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333136400 + 1333136401.

It is an arithmetic number, because the mean of its divisors is an integer number (1333136401).

Almost surely, 2^2666272801 is an apocalyptic number.

It is an amenable number.

2666272801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666272801 is an equidigital number, since it uses as much as digits as its factorization.

2666272801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 2666272801 is about 51635.9642206863. The cubic root of 2666272801 is about 1386.6542725396.

The spelling of 2666272801 in words is "two billion, six hundred sixty-six million, two hundred seventy-two thousand, eight hundred one".