2665360080 has 240 divisors, whose sum is σ = 9349651584. Its totient is φ = 705646080.

The previous prime is 2665360073. The next prime is 2665360081. The reversal of 2665360080 is 800635662.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665360081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3246070 + ... + 3246890.

Almost surely, 2^2665360080 is an apocalyptic number.

2665360080 is a gapful number since it is divisible by the number (20) 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 2665360080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4674825792).

2665360080 is an abundant number, since it is smaller than the sum of its proper divisors (6684291504).

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

2665360080 is a wasteful number, since it uses less digits than its factorization.

2665360080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2665360080 is about 51627.1254284025. The cubic root of 2665360080 is about 1386.4960275520.

The spelling of 2665360080 in words is "two billion, six hundred sixty-five million, three hundred sixty thousand, eighty".