2665432101 has 4 divisors (see below), whose sum is σ = 3553909472. Its totient is φ = 1776954732.

The previous prime is 2665432093. The next prime is 2665432103. The reversal of 2665432101 is 1012345662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2665432101 - 2³ = 2665432093 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 (2665432103) 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 3 ways as a sum of consecutive naturals, for example, 444238681 + ... + 444238686.

It is an arithmetic number, because the mean of its divisors is an integer number (888477368).

Almost surely, 2^2665432101 is an apocalyptic number.

It is an amenable number.

2665432101 is a deficient number, since it is larger than the sum of its proper divisors (888477371).

2665432101 is an equidigital number, since it uses as much as digits as its factorization.

2665432101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888477370.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2665432101 is about 51627.8229349253. The cubic root of 2665432101 is about 1386.5085156622.

Adding to 2665432101 its reverse (1012345662), we get a palindrome (3677777763).

The spelling of 2665432101 in words is "two billion, six hundred sixty-five million, four hundred thirty-two thousand, one hundred one".