80756432560 has 20 divisors (see below), whose sum is σ = 187758705888. Its totient is φ = 32302572992.

The previous prime is 80756432551. The next prime is 80756432569. The reversal of 80756432560 is 6523465708.

It is an interprime number because it is at equal distance from previous prime (80756432551) and next prime (80756432569).

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 80756432560.

It is not an unprimeable number, because it can be changed into a prime (80756432569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504727624 + ... + 504727783.

Almost surely, 2^80756432560 is an apocalyptic number.

80756432560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80756432560 is an abundant number, since it is smaller than the sum of its proper divisors (107002273328).

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

80756432560 is a wasteful number, since it uses less digits than its factorization.

80756432560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009455420 (or 1009455414 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 80756432560 in words is "eighty billion, seven hundred fifty-six million, four hundred thirty-two thousand, five hundred sixty".