2164332216947 has 2 divisors, whose sum is σ = 2164332216948. Its totient is φ = 2164332216946.

The previous prime is 2164332216941. The next prime is 2164332216983. The reversal of 2164332216947 is 7496122334612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2164332216947 - 2¹⁰ = 2164332215923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2164332216895 and 2164332216904.

It is not a weakly prime, because it can be changed into another prime (2164332216941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082166108473 + 1082166108474.

It is an arithmetic number, because the mean of its divisors is an integer number (1082166108474).

Almost surely, 2^{2164332216947} is an apocalyptic number.

2164332216947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164332216947 is an equidigital number, since it uses as much as digits as its factorization.

2164332216947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 50.

The spelling of 2164332216947 in words is "two trillion, one hundred sixty-four billion, three hundred thirty-two million, two hundred sixteen thousand, nine hundred forty-seven".