80656016 has 40 divisors (see below), whose sum is σ = 179494464. Its totient is φ = 34392960.

The previous prime is 80656013. The next prime is 80656019. The reversal of 80656016 is 61065608.

It is an interprime number because it is at equal distance from previous prime (80656013) and next prime (80656019).

It is not an unprimeable number, because it can be changed into a prime (80656013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21926 + ... + 25338.

Almost surely, 2^80656016 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 80656016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89747232).

80656016 is an abundant number, since it is smaller than the sum of its proper divisors (98838448).

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

80656016 is a wasteful number, since it uses less digits than its factorization.

80656016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 80656016 is about 8980.8694456606. The cubic root of 80656016 is about 432.0615195881.

The spelling of 80656016 in words is "eighty million, six hundred fifty-six thousand, sixteen".