616166149 has 2 divisors, whose sum is σ = 616166150. Its totient is φ = 616166148.

The previous prime is 616166147. The next prime is 616166167. The reversal of 616166149 is 941661616.

616166149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615784225 + 381924 = 24815^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 616166149 - 2¹ = 616166147 is a prime.

Together with 616166147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616166141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308083074 + 308083075.

It is an arithmetic number, because the mean of its divisors is an integer number (308083075).

Almost surely, 2^616166149 is an apocalyptic number.

It is an amenable number.

616166149 is a deficient number, since it is larger than the sum of its proper divisors (1).

616166149 is an equidigital number, since it uses as much as digits as its factorization.

616166149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 616166149 is about 24822.6942333019. The cubic root of 616166149 is about 850.9406651892.

The spelling of 616166149 in words is "six hundred sixteen million, one hundred sixty-six thousand, one hundred forty-nine".