80961209799122 has 16 divisors (see below), whose sum is σ = 121525195821120. Its totient is φ = 40452811865232.

The previous prime is 80961209799121. The next prime is 80961209799139. The reversal of 80961209799122 is 22199790216908.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80961209799121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 414261404 + ... + 414456792.

It is an arithmetic number, because the mean of its divisors is an integer number (7595324738820).

Almost surely, 2^{80961209799122} is an apocalyptic number.

80961209799122 is a deficient number, since it is larger than the sum of its proper divisors (40563986021998).

80961209799122 is a wasteful number, since it uses less digits than its factorization.

80961209799122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336577.

The product of its (nonzero) digits is 17635968, while the sum is 65.

The spelling of 80961209799122 in words is "eighty trillion, nine hundred sixty-one billion, two hundred nine million, seven hundred ninety-nine thousand, one hundred twenty-two".