2665769652 has 288 divisors, whose sum is σ = 8629770240. Its totient is φ = 675164160.

The previous prime is 2665769633. The next prime is 2665769657. The reversal of 2665769652 is 2569675662.

2665769652 is a `hidden beast` number, since 2 + 6 + 6 + 576 + 9 + 65 + 2 = 666.

It is a super-2 number, since 2×2665769652² = 14212655675048402208, which contains 22 as substring.

Its product of digits (8164800) is a multiple of the sum of its prime divisors (378).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665769657) 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 95 ways as a sum of consecutive naturals, for example, 11954013 + ... + 11954235.

It is an arithmetic number, because the mean of its divisors is an integer number (29964480).

Almost surely, 2^2665769652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665769652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4314885120).

2665769652 is an abundant number, since it is smaller than the sum of its proper divisors (5964000588).

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

2665769652 is a wasteful number, since it uses less digits than its factorization.

2665769652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 378 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 54.

The square root of 2665769652 is about 51631.0919117541. The cubic root of 2665769652 is about 1386.5670424554.

The spelling of 2665769652 in words is "two billion, six hundred sixty-five million, seven hundred sixty-nine thousand, six hundred fifty-two".