2665220469 has 8 divisors (see below), whose sum is σ = 3555458400. Its totient is φ = 1775898096.

The previous prime is 2665220449. The next prime is 2665220471. The reversal of 2665220469 is 9640225662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2665220469 - 2⁸ = 2665220213 is a prime.

It is a super-2 number, since 2×2665220469² = 14206800296753159922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2665220469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665220429) 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 7 ways as a sum of consecutive naturals, for example, 222067 + ... + 233760.

It is an arithmetic number, because the mean of its divisors is an integer number (444432300).

Almost surely, 2^2665220469 is an apocalyptic number.

It is an amenable number.

2665220469 is a deficient number, since it is larger than the sum of its proper divisors (890237931).

2665220469 is a wasteful number, since it uses less digits than its factorization.

2665220469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457779.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 2665220469 is about 51625.7733017143. The cubic root of 2665220469 is about 1386.4718190059.

The spelling of 2665220469 in words is "two billion, six hundred sixty-five million, two hundred twenty thousand, four hundred sixty-nine".