817138163596 has 24 divisors (see below), whose sum is σ = 1436404970000. Its totient is φ = 406737163584.

The previous prime is 817138163581. The next prime is 817138163669. The reversal of 817138163596 is 695361831718.

It is a happy number.

It is a Lucas number.

It is a self number, because there is not a number n which added to its sum of digits gives 817138163596.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8515975 + ... + 8611393.

Almost surely, 2^817138163596 is an apocalyptic number.

It is an amenable number.

817138163596 is a deficient number, since it is larger than the sum of its proper divisors (619266806404).

817138163596 is a wasteful number, since it uses less digits than its factorization.

817138163596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105001 (or 104999 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The spelling of 817138163596 in words is "eight hundred seventeen billion, one hundred thirty-eight million, one hundred sixty-three thousand, five hundred ninety-six".