2513031666 has 16 divisors (see below), whose sum is σ = 5027414688. Its totient is φ = 837452000.

The previous prime is 2513031629. The next prime is 2513031739. The reversal of 2513031666 is 6661303152.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31275 + ... + 77486.

It is an arithmetic number, because the mean of its divisors is an integer number (314213418).

Almost surely, 2^2513031666 is an apocalyptic number.

2513031666 is an abundant number, since it is smaller than the sum of its proper divisors (2514383022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2513031666 is a wasteful number, since it uses less digits than its factorization.

2513031666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112617.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 2513031666 is about 50130.1472768633. The cubic root of 2513031666 is about 1359.5629481591.

The spelling of 2513031666 in words is "two billion, five hundred thirteen million, thirty-one thousand, six hundred sixty-six".