2665669367 has 4 divisors (see below), whose sum is σ = 2666419416. Its totient is φ = 2664919320.

The previous prime is 2665669339. The next prime is 2665669381. The reversal of 2665669367 is 7639665662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7639665662 = 2 ⋅3819832831.

It is a cyclic number.

It is not a de Polignac number, because 2665669367 - 2¹⁸ = 2665407223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665669327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369668 + ... + 376809.

It is an arithmetic number, because the mean of its divisors is an integer number (666604854).

Almost surely, 2^2665669367 is an apocalyptic number.

2665669367 is a deficient number, since it is larger than the sum of its proper divisors (750049).

2665669367 is an equidigital number, since it uses as much as digits as its factorization.

2665669367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750048.

The product of its digits is 14696640, while the sum is 56.

The square root of 2665669367 is about 51630.1207339282. The cubic root of 2665669367 is about 1386.5496549042.

The spelling of 2665669367 in words is "two billion, six hundred sixty-five million, six hundred sixty-nine thousand, three hundred sixty-seven".