2640226601 has 2 divisors, whose sum is σ = 2640226602. Its totient is φ = 2640226600.

The previous prime is 2640226591. The next prime is 2640226609. The reversal of 2640226601 is 1066220462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1540641001 + 1099585600 = 39251^2 + 33160^2 .

It is a cyclic number.

It is not a de Polignac number, because 2640226601 - 2¹⁴ = 2640210217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2640226609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320113300 + 1320113301.

It is an arithmetic number, because the mean of its divisors is an integer number (1320113301).

Almost surely, 2^2640226601 is an apocalyptic number.

It is an amenable number.

2640226601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640226601 is an equidigital number, since it uses as much as digits as its factorization.

2640226601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2640226601 is about 51383.1353753350. The cubic root of 2640226601 is about 1382.1241880228.

The spelling of 2640226601 in words is "two billion, six hundred forty million, two hundred twenty-six thousand, six hundred one".