80615448810 has 144 divisors (see below), whose sum is σ = 227183556600. Its totient is φ = 19824569856.

The previous prime is 80615448731. The next prime is 80615448811. The reversal of 80615448810 is 1884451608.

80615448810 is a `hidden beast` number, since 8 + 0 + 6 + 154 + 488 + 10 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 15417443889 + 65198004921 = 124167^2 + 255339^2 .

It is a super-2 number, since 2×80615448810² (a number of 23 digits) contains 22 as substring.

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 (80615448811) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21733236 + ... + 21736944.

Almost surely, 2^80615448810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80615448810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113591778300).

80615448810 is an abundant number, since it is smaller than the sum of its proper divisors (146568107790).

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

80615448810 is a wasteful number, since it uses less digits than its factorization.

80615448810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The spelling of 80615448810 in words is "eighty billion, six hundred fifteen million, four hundred forty-eight thousand, eight hundred ten".