73918166648 has 16 divisors (see below), whose sum is σ = 139176468000. Its totient is φ = 36804441856.

The previous prime is 73918166629. The next prime is 73918166657. The reversal of 73918166648 is 84666181937.

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, 19328153 + ... + 19331976.

It is an arithmetic number, because the mean of its divisors is an integer number (8698529250).

Almost surely, 2^73918166648 is an apocalyptic number.

It is an amenable number.

73918166648 is a deficient number, since it is larger than the sum of its proper divisors (65258301352).

73918166648 is a wasteful number, since it uses less digits than its factorization.

73918166648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38660374 (or 38660370 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The spelling of 73918166648 in words is "seventy-three billion, nine hundred eighteen million, one hundred sixty-six thousand, six hundred forty-eight".