2660450263 has 4 divisors (see below), whose sum is σ = 2660723800. Its totient is φ = 2660176728.

The previous prime is 2660450231. The next prime is 2660450267. The reversal of 2660450263 is 3620540662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2660450263 - 2⁵ = 2660450231 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 (2660450267) 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, 121620 + ... + 141817.

It is an arithmetic number, because the mean of its divisors is an integer number (665180950).

Almost surely, 2^2660450263 is an apocalyptic number.

2660450263 is a deficient number, since it is larger than the sum of its proper divisors (273537).

2660450263 is a wasteful number, since it uses less digits than its factorization.

2660450263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273536.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2660450263 is about 51579.5527607598. The cubic root of 2660450263 is about 1385.6441569098.

It can be divided in two parts, 26604 and 50263, that added together give a palindrome (76867).

The spelling of 2660450263 in words is "two billion, six hundred sixty million, four hundred fifty thousand, two hundred sixty-three".