80206545897 has 32 divisors (see below), whose sum is σ = 121751280000. Its totient is φ = 52154599680.

The previous prime is 80206545889. The next prime is 80206545929. The reversal of 80206545897 is 79854560208.

80206545897 is a `hidden beast` number, since 8 + 0 + 2 + 0 + 6 + 54 + 589 + 7 = 666.

It is not a de Polignac number, because 80206545897 - 2³ = 80206545889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80206545817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9215854 + ... + 9224552.

It is an arithmetic number, because the mean of its divisors is an integer number (3804727500).

Almost surely, 2^80206545897 is an apocalyptic number.

It is an amenable number.

80206545897 is a deficient number, since it is larger than the sum of its proper divisors (41544734103).

80206545897 is a wasteful number, since it uses less digits than its factorization.

80206545897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17078 (or 17072 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 80206545897 in words is "eighty billion, two hundred six million, five hundred forty-five thousand, eight hundred ninety-seven".