2616226997 has 2 divisors, whose sum is σ = 2616226998. Its totient is φ = 2616226996.

The previous prime is 2616226993. The next prime is 2616226999. The reversal of 2616226997 is 7996226162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1918527601 + 697699396 = 43801^2 + 26414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2616226997 - 2² = 2616226993 is a prime.

Together with 2616226999, 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 (2616226993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308113498 + 1308113499.

It is an arithmetic number, because the mean of its divisors is an integer number (1308113499).

Almost surely, 2^2616226997 is an apocalyptic number.

It is an amenable number.

2616226997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2616226997 is an equidigital number, since it uses as much as digits as its factorization.

2616226997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 50.

The square root of 2616226997 is about 51149.0664333182. The cubic root of 2616226997 is about 1377.9236079149.

The spelling of 2616226997 in words is "two billion, six hundred sixteen million, two hundred twenty-six thousand, nine hundred ninety-seven".