1606220215967 has 2 divisors, whose sum is σ = 1606220215968. Its totient is φ = 1606220215966.

The previous prime is 1606220215937. The next prime is 1606220215969. The reversal of 1606220215967 is 7695120226061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1606220215967 - 2⁸ = 1606220215711 is a prime.

It is a super-2 number, since 2×1606220215967² (a number of 25 digits) contains 22 as substring.

Together with 1606220215969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606220215969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803110107983 + 803110107984.

It is an arithmetic number, because the mean of its divisors is an integer number (803110107984).

Almost surely, 2^{1606220215967} is an apocalyptic number.

1606220215967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606220215967 is an equidigital number, since it uses as much as digits as its factorization.

1606220215967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 1606220215967 in words is "one trillion, six hundred six billion, two hundred twenty million, two hundred fifteen thousand, nine hundred sixty-seven".