2116466214451 has 2 divisors, whose sum is σ = 2116466214452. Its totient is φ = 2116466214450.

The previous prime is 2116466214427. The next prime is 2116466214463. The reversal of 2116466214451 is 1544126646112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2116466214451 - 2⁵ = 2116466214419 is a prime.

It is a super-4 number, since 4×2116466214451⁴ (a number of 50 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2116466214398 and 2116466214407.

It is not a weakly prime, because it can be changed into another prime (2116466211451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058233107225 + 1058233107226.

It is an arithmetic number, because the mean of its divisors is an integer number (1058233107226).

Almost surely, 2^{2116466214451} is an apocalyptic number.

2116466214451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116466214451 is an equidigital number, since it uses as much as digits as its factorization.

2116466214451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 43.

The spelling of 2116466214451 in words is "two trillion, one hundred sixteen billion, four hundred sixty-six million, two hundred fourteen thousand, four hundred fifty-one".