80984518016 has 16 divisors (see below), whose sum is σ = 161336344740. Its totient is φ = 40492258944.

The previous prime is 80984518003. The next prime is 80984518049. The reversal of 80984518016 is 61081548908.

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 316345646 + ... + 316345901.

Almost surely, 2^80984518016 is an apocalyptic number.

It is an amenable number.

80984518016 is a deficient number, since it is larger than the sum of its proper divisors (80351826724).

80984518016 is an equidigital number, since it uses as much as digits as its factorization.

80984518016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632691561 (or 632691549 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 50.

The spelling of 80984518016 in words is "eighty billion, nine hundred eighty-four million, five hundred eighteen thousand, sixteen".