80330505777 has 24 divisors (see below), whose sum is σ = 117682909344. Its totient is φ = 52794921984.

The previous prime is 80330505763. The next prime is 80330505797. The reversal of 80330505777 is 77750503308.

It is not a de Polignac number, because 80330505777 - 2¹⁹ = 80329981489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80330505797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233713 + ... + 463985.

It is an arithmetic number, because the mean of its divisors is an integer number (4903454556).

Almost surely, 2^80330505777 is an apocalyptic number.

It is an amenable number.

80330505777 is a deficient number, since it is larger than the sum of its proper divisors (37352403567).

80330505777 is a wasteful number, since it uses less digits than its factorization.

80330505777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230829 (or 230826 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 80330505777 in words is "eighty billion, three hundred thirty million, five hundred five thousand, seven hundred seventy-seven".