80209427616 has 144 divisors (see below), whose sum is σ = 238232685600. Its totient is φ = 25572754944.

The previous prime is 80209427581. The next prime is 80209427647. The reversal of 80209427616 is 61672490208.

It is a happy number.

80209427616 is a `hidden beast` number, since 8 + 0 + 2 + 0 + 9 + 4 + 27 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564915 + ... + 692493.

It is an arithmetic number, because the mean of its divisors is an integer number (1654393650).

Almost surely, 2^80209427616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80209427616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119116342800).

80209427616 is an abundant number, since it is smaller than the sum of its proper divisors (158023257984).

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

80209427616 is a wasteful number, since it uses less digits than its factorization.

80209427616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127691 (or 127680 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 80209427616 in words is "eighty billion, two hundred nine million, four hundred twenty-seven thousand, six hundred sixteen".