80578605666928 has 20 divisors (see below), whose sum is σ = 156151957574808. Its totient is φ = 40281326292800.

The previous prime is 80578605666899. The next prime is 80578605666931. The reversal of 80578605666928 is 82966650687508.

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, 498450451 + ... + 498612082.

Almost surely, 2^{80578605666928} is an apocalyptic number.

It is an amenable number.

80578605666928 is a deficient number, since it is larger than the sum of its proper divisors (75573351907880).

80578605666928 is a wasteful number, since it uses less digits than its factorization.

80578605666928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997067592 (or 997067586 counting only the distinct ones).

The product of its (nonzero) digits is 2090188800, while the sum is 76.

It can be divided in two parts, 80578 and 605666928, that added together give a palindrome (605747506).

The spelling of 80578605666928 in words is "eighty trillion, five hundred seventy-eight billion, six hundred five million, six hundred sixty-six thousand, nine hundred twenty-eight".