2116215667 has 2 divisors, whose sum is σ = 2116215668. Its totient is φ = 2116215666.

The previous prime is 2116215659. The next prime is 2116215677. The reversal of 2116215667 is 7665126112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2116215667 - 2³ = 2116215659 is a prime.

It is not a weakly prime, because it can be changed into another prime (2116215677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058107833 + 1058107834.

It is an arithmetic number, because the mean of its divisors is an integer number (1058107834).

Almost surely, 2^2116215667 is an apocalyptic number.

2116215667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116215667 is an equidigital number, since it uses as much as digits as its factorization.

2116215667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 2116215667 is about 46002.3441467932. The cubic root of 2116215667 is about 1283.8668197367.

The spelling of 2116215667 in words is "two billion, one hundred sixteen million, two hundred fifteen thousand, six hundred sixty-seven".