8665402080 has 96 divisors (see below), whose sum is σ = 27394978464. Its totient is φ = 2302396416.

The previous prime is 8665402049. The next prime is 8665402091. The reversal of 8665402080 is 802045668.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100374 + ... + 165546.

It is an arithmetic number, because the mean of its divisors is an integer number (285364359).

Almost surely, 2^8665402080 is an apocalyptic number.

8665402080 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 8665402080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13697489232).

8665402080 is an abundant number, since it is smaller than the sum of its proper divisors (18729576384).

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

8665402080 is a wasteful number, since it uses less digits than its factorization.

8665402080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65468 (or 65460 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 8665402080 is about 93088.1414574381. The cubic root of 8665402080 is about 2053.9801381500.

The spelling of 8665402080 in words is "eight billion, six hundred sixty-five million, four hundred two thousand, eighty".