997617067316 has 12 divisors (see below), whose sum is σ = 1746026953860. Its totient is φ = 498752223360.

The previous prime is 997617067309. The next prime is 997617067339. The reversal of 997617067316 is 613760716799.

It can be written as a sum of positive squares in 2 ways, for example, as 752191944100 + 245425123216 = 867290^2 + 495404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14037701 + ... + 14108588.

It is an arithmetic number, because the mean of its divisors is an integer number (145502246155).

Almost surely, 2^997617067316 is an apocalyptic number.

It is an amenable number.

997617067316 is a deficient number, since it is larger than the sum of its proper divisors (748409886544).

997617067316 is a wasteful number, since it uses less digits than its factorization.

997617067316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28155154 (or 28155152 counting only the distinct ones).

The product of its (nonzero) digits is 18003384, while the sum is 62.

The spelling of 997617067316 in words is "nine hundred ninety-seven billion, six hundred seventeen million, sixty-seven thousand, three hundred sixteen".