2453506665 has 16 divisors (see below), whose sum is σ = 3926232000. Its totient is φ = 1308329792.

The previous prime is 2453506661. The next prime is 2453506673. The reversal of 2453506665 is 5666053542.

It is a cyclic number.

It is not a de Polignac number, because 2453506665 - 2² = 2453506661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2453506661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156766 + ... + 171704.

It is an arithmetic number, because the mean of its divisors is an integer number (245389500).

Almost surely, 2^2453506665 is an apocalyptic number.

It is an amenable number.

2453506665 is a deficient number, since it is larger than the sum of its proper divisors (1472725335).

2453506665 is a wasteful number, since it uses less digits than its factorization.

2453506665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25896.

The product of its (nonzero) digits is 648000, while the sum is 42.

The square root of 2453506665 is about 49532.8846828044. The cubic root of 2453506665 is about 1348.7426179972.

The spelling of 2453506665 in words is "two billion, four hundred fifty-three million, five hundred six thousand, six hundred sixty-five".