2533666345 has 32 divisors (see below), whose sum is σ = 3599769600. Its totient is φ = 1675032576.

The previous prime is 2533666327. The next prime is 2533666357. The reversal of 2533666345 is 5436663352.

It is not a de Polignac number, because 2533666345 - 2⁹ = 2533665833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941592 + ... + 944278.

It is an arithmetic number, because the mean of its divisors is an integer number (112492800).

Almost surely, 2^2533666345 is an apocalyptic number.

It is an amenable number.

2533666345 is a deficient number, since it is larger than the sum of its proper divisors (1066103255).

2533666345 is a wasteful number, since it uses less digits than its factorization.

2533666345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657.

The product of its digits is 1166400, while the sum is 43.

The square root of 2533666345 is about 50335.5375952219. The cubic root of 2533666345 is about 1363.2739650036.

The spelling of 2533666345 in words is "two billion, five hundred thirty-three million, six hundred sixty-six thousand, three hundred forty-five".