2001466622641 has 2 divisors, whose sum is σ = 2001466622642. Its totient is φ = 2001466622640.

The previous prime is 2001466622629. The next prime is 2001466622707. The reversal of 2001466622641 is 1462266641002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1952528334241 + 48938288400 = 1397329^2 + 221220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001466622641 - 2²³ = 2001458234033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001466622594 and 2001466622603.

It is not a weakly prime, because it can be changed into another prime (2001466622041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000733311320 + 1000733311321.

It is an arithmetic number, because the mean of its divisors is an integer number (1000733311321).

Almost surely, 2^{2001466622641} is an apocalyptic number.

It is an amenable number.

2001466622641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001466622641 is an equidigital number, since it uses as much as digits as its factorization.

2001466622641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 2001466622641 in words is "two trillion, one billion, four hundred sixty-six million, six hundred twenty-two thousand, six hundred forty-one".