2453506666 has 16 divisors (see below), whose sum is σ = 4060025928. Its totient is φ = 1104768000.

The previous prime is 2453506661. The next prime is 2453506673. The reversal of 2453506666 is 6666053542.

It can be written as a sum of positive squares in 4 ways, for example, as 325622025 + 2127884641 = 18045^2 + 46129^2 .

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 7 ways as a sum of consecutive naturals, for example, 1149735 + ... + 1151866.

Almost surely, 2^2453506666 is an apocalyptic number.

2453506666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2453506666 is a deficient number, since it is larger than the sum of its proper divisors (1606519262).

2453506666 is a wasteful number, since it uses less digits than its factorization.

2453506666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301657.

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 2453506666 is about 49532.8846928987. The cubic root of 2453506666 is about 1348.7426181804.

The spelling of 2453506666 in words is "two billion, four hundred fifty-three million, five hundred six thousand, six hundred sixty-six".