2665885662 has 32 divisors (see below), whose sum is σ = 6462754560. Its totient is φ = 807843960.

The previous prime is 2665885661. The next prime is 2665885667.

2665885662 is a `hidden beast` number, since 2 + 6 + 6 + 588 + 56 + 6 + 2 = 666.

2665885662 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 2665885599 and 2665885608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665885661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2243418 + ... + 2244605.

It is an arithmetic number, because the mean of its divisors is an integer number (201961080).

Almost surely, 2^2665885662 is an apocalyptic number.

2665885662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2665885662 is an abundant number, since it is smaller than the sum of its proper divisors (3796868898).

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

2665885662 is a wasteful number, since it uses less digits than its factorization.

2665885662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488045 (or 4488039 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The square root of 2665885662 is about 51632.2153504961. The cubic root of 2665885662 is about 1386.5871558849.

The spelling of 2665885662 in words is "two billion, six hundred sixty-five million, eight hundred eighty-five thousand, six hundred sixty-two".