80277897216 has 384 divisors, whose sum is σ = 249770137680. Its totient is φ = 22837985280.

The previous prime is 80277897191. The next prime is 80277897269. The reversal of 80277897216 is 61279877208.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202211130 + ... + 202211526.

Almost surely, 2^80277897216 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 80277897216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124885068840).

80277897216 is an abundant number, since it is smaller than the sum of its proper divisors (169492240464).

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

80277897216 is a wasteful number, since it uses less digits than its factorization.

80277897216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 57.

The spelling of 80277897216 in words is "eighty billion, two hundred seventy-seven million, eight hundred ninety-seven thousand, two hundred sixteen".