73665576079 has 4 divisors (see below), whose sum is σ = 73829642400. Its totient is φ = 73501509760.

The previous prime is 73665576071. The next prime is 73665576107. The reversal of 73665576079 is 97067556637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97067556637 = 130379 ⋅744503.

It is a cyclic number.

It is not a de Polignac number, because 73665576079 - 2³ = 73665576071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73665576071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82032487 + ... + 82033384.

It is an arithmetic number, because the mean of its divisors is an integer number (18457410600).

Almost surely, 2^73665576079 is an apocalyptic number.

73665576079 is a deficient number, since it is larger than the sum of its proper divisors (164066321).

73665576079 is a wasteful number, since it uses less digits than its factorization.

73665576079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164066320.

The product of its (nonzero) digits is 50009400, while the sum is 61.

The spelling of 73665576079 in words is "seventy-three billion, six hundred sixty-five million, five hundred seventy-six thousand, seventy-nine".