80205711075 has 72 divisors (see below), whose sum is σ = 169841287200. Its totient is φ = 35401121280.

The previous prime is 80205711043. The next prime is 80205711101. The reversal of 80205711075 is 57011750208.

80205711075 is a `hidden beast` number, since 8 + 0 + 2 + 0 + 571 + 10 + 75 = 666.

It is not a de Polignac number, because 80205711075 - 2⁵ = 80205711043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 832330 + ... + 923679.

Almost surely, 2^80205711075 is an apocalyptic number.

80205711075 is an abundant number, since it is smaller than the sum of its proper divisors (89635576125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80205711075 is a wasteful number, since it uses less digits than its factorization.

80205711075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756061 (or 1756053 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 36.

The spelling of 80205711075 in words is "eighty billion, two hundred five million, seven hundred eleven thousand, seventy-five".