2001466622644 has 48 divisors (see below), whose sum is σ = 3647501161920. Its totient is φ = 959801149440.

The previous prime is 2001466622641. The next prime is 2001466622707. The reversal of 2001466622644 is 4462266641002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001466622644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001466622641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12722772 + ... + 12879124.

It is an arithmetic number, because the mean of its divisors is an integer number (75989607540).

Almost surely, 2^{2001466622644} is an apocalyptic number.

It is an amenable number.

2001466622644 is a deficient number, since it is larger than the sum of its proper divisors (1646034539276).

2001466622644 is a wasteful number, since it uses less digits than its factorization.

2001466622644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157120 (or 157118 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 2001466622644 in words is "two trillion, one billion, four hundred sixty-six million, six hundred twenty-two thousand, six hundred forty-four".