66252653318 has 16 divisors (see below), whose sum is σ = 99498127680. Its totient is φ = 33086637696.

The previous prime is 66252653309. The next prime is 66252653321. The reversal of 66252653318 is 81335625266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6795155 + ... + 6804897.

It is an arithmetic number, because the mean of its divisors is an integer number (6218632980).

Almost surely, 2^66252653318 is an apocalyptic number.

66252653318 is a deficient number, since it is larger than the sum of its proper divisors (33245474362).

66252653318 is a wasteful number, since it uses less digits than its factorization.

66252653318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13471.

The product of its digits is 1555200, while the sum is 47.

The spelling of 66252653318 in words is "sixty-six billion, two hundred fifty-two million, six hundred fifty-three thousand, three hundred eighteen".