80616332160 has 1280 divisors, whose sum is σ = 370236303360. Its totient is φ = 16247734272.

The previous prime is 80616332143. The next prime is 80616332177. The reversal of 80616332160 is 6123361608.

80616332160 is a `hidden beast` number, since 8 + 0 + 6 + 1 + 633 + 2 + 16 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (80616332143) and next prime (80616332177).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 108500749 + ... + 108501491.

It is an arithmetic number, because the mean of its divisors is an integer number (289247112).

Almost surely, 2^80616332160 is an apocalyptic number.

80616332160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80616332160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185118151680).

80616332160 is an abundant number, since it is smaller than the sum of its proper divisors (289619971200).

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

80616332160 is a wasteful number, since it uses less digits than its factorization.

80616332160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

Adding to 80616332160 its reverse (6123361608), we get a palindrome (86739693768).

The spelling of 80616332160 in words is "eighty billion, six hundred sixteen million, three hundred thirty-two thousand, one hundred sixty".