2253403665 has 32 divisors (see below), whose sum is σ = 4103769600. Its totient is φ = 1172499840.

The previous prime is 2253403619. The next prime is 2253403699. The reversal of 2253403665 is 5663043522.

2253403665 is a `hidden beast` number, since 2 + 253 + 40 + 366 + 5 = 666.

It is not a de Polignac number, because 2253403665 - 2¹⁵ = 2253370897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198025 + ... + 209094.

It is an arithmetic number, because the mean of its divisors is an integer number (128242800).

Almost surely, 2^2253403665 is an apocalyptic number.

It is an amenable number.

2253403665 is a deficient number, since it is larger than the sum of its proper divisors (1850365935).

2253403665 is a wasteful number, since it uses less digits than its factorization.

2253403665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407174 (or 407168 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 2253403665 is about 47470.0291236481. The cubic root of 2253403665 is about 1311.0311142593.

The spelling of 2253403665 in words is "two billion, two hundred fifty-three million, four hundred three thousand, six hundred sixty-five".