80816782552 has 64 divisors (see below), whose sum is σ = 166221020160. Its totient is φ = 36532204800.

The previous prime is 80816782523. The next prime is 80816782567. The reversal of 80816782552 is 25528761808.

It is a self number, because there is not a number n which added to its sum of digits gives 80816782552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21137713 + ... + 21141535.

It is an arithmetic number, because the mean of its divisors is an integer number (2597203440).

Almost surely, 2^80816782552 is an apocalyptic number.

It is an amenable number.

80816782552 is an abundant number, since it is smaller than the sum of its proper divisors (85404237608).

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

80816782552 is a wasteful number, since it uses less digits than its factorization.

80816782552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104 (or 5100 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 52.

It can be divided in two parts, 80816 and 782552, that added together give a palindrome (863368).

The spelling of 80816782552 in words is "eighty billion, eight hundred sixteen million, seven hundred eighty-two thousand, five hundred fifty-two".