2665112040 has 48 divisors (see below), whose sum is σ = 8661615300. Its totient is φ = 710696448.

The previous prime is 2665112039. The next prime is 2665112063. The reversal of 2665112040 is 402115662.

2665112040 is a `hidden beast` number, since 2 + 6 + 651 + 1 + 2 + 0 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2649572676 + 15539364 = 51474^2 + 3942^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2665111995 and 2665112013.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3701185 + ... + 3701904.

Almost surely, 2^2665112040 is an apocalyptic number.

2665112040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2665112040 is an abundant number, since it is smaller than the sum of its proper divisors (5996503260).

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

2665112040 is a wasteful number, since it uses less digits than its factorization.

2665112040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403106 (or 7403099 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2665112040 is about 51624.7231469574. The cubic root of 2665112040 is about 1386.4530168351.

The spelling of 2665112040 in words is "two billion, six hundred sixty-five million, one hundred twelve thousand, forty".