73117217816 has 16 divisors (see below), whose sum is σ = 140438559240. Its totient is φ = 35666935360.

The previous prime is 73117217807. The next prime is 73117217839. The reversal of 73117217816 is 61871271137.

It is a super-2 number, since 2×73117217816² (a number of 23 digits) contains 22 as substring.

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, 111458846 + ... + 111459501.

Almost surely, 2^73117217816 is an apocalyptic number.

It is an amenable number.

73117217816 is a deficient number, since it is larger than the sum of its proper divisors (67321341424).

73117217816 is a wasteful number, since it uses less digits than its factorization.

73117217816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222918394 (or 222918390 counting only the distinct ones).

The product of its digits is 98784, while the sum is 44.

The spelling of 73117217816 in words is "seventy-three billion, one hundred seventeen million, two hundred seventeen thousand, eight hundred sixteen".