80966790489504 has 48 divisors (see below), whose sum is σ = 212636177187840. Its totient is φ = 26976441000960.

The previous prime is 80966790489503. The next prime is 80966790489509. The reversal of 80966790489504 is 40598409766908.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (80966790489503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194934624 + ... + 195349535.

It is an arithmetic number, because the mean of its divisors is an integer number (4429920358080).

Almost surely, 2^{80966790489504} is an apocalyptic number.

It is an amenable number.

80966790489504 is an abundant number, since it is smaller than the sum of its proper divisors (131669386698336).

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

80966790489504 is a wasteful number, since it uses less digits than its factorization.

80966790489504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390286333 (or 390286325 counting only the distinct ones).

The product of its (nonzero) digits is 940584960, while the sum is 75.

The spelling of 80966790489504 in words is "eighty trillion, nine hundred sixty-six billion, seven hundred ninety million, four hundred eighty-nine thousand, five hundred four".