80618716080 has 720 divisors, whose sum is σ = 334487162880. Its totient is φ = 17301537792.

The previous prime is 80618716063. The next prime is 80618716081. The reversal of 80618716080 is 8061781608.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (80618716081) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 85130167 + ... + 85131113.

It is an arithmetic number, because the mean of its divisors is an integer number (464565504).

Almost surely, 2^80618716080 is an apocalyptic number.

80618716080 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 80618716080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167243581440).

80618716080 is an abundant number, since it is smaller than the sum of its proper divisors (253868446800).

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

80618716080 is a wasteful number, since it uses less digits than its factorization.

80618716080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 80618716080 in words is "eighty billion, six hundred eighteen million, seven hundred sixteen thousand, eighty".