80555397969 has 8 divisors (see below), whose sum is σ = 107409510720. Its totient is φ = 53702441936.

The previous prime is 80555397917. The next prime is 80555397971. The reversal of 80555397969 is 96979355508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80555397969 - 2⁹ = 80555397457 is a prime.

It is a super-2 number, since 2×80555397969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80555396969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110997 + ... + 416450.

It is an arithmetic number, because the mean of its divisors is an integer number (13426188840).

Almost surely, 2^80555397969 is an apocalyptic number.

It is an amenable number.

80555397969 is a deficient number, since it is larger than the sum of its proper divisors (26854112751).

80555397969 is a wasteful number, since it uses less digits than its factorization.

80555397969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578359.

The product of its (nonzero) digits is 91854000, while the sum is 66.

The spelling of 80555397969 in words is "eighty billion, five hundred fifty-five million, three hundred ninety-seven thousand, nine hundred sixty-nine".