80330505778 has 16 divisors (see below), whose sum is σ = 129790665216. Its totient is φ = 37179616320.

The previous prime is 80330505763. The next prime is 80330505797. The reversal of 80330505778 is 87750503308.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28164951 + ... + 28167802.

It is an arithmetic number, because the mean of its divisors is an integer number (8111916576).

Almost surely, 2^80330505778 is an apocalyptic number.

80330505778 is a deficient number, since it is larger than the sum of its proper divisors (49460159438).

80330505778 is a wasteful number, since it uses less digits than its factorization.

80330505778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56332809.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 80330505778 in words is "eighty billion, three hundred thirty million, five hundred five thousand, seven hundred seventy-eight".