66253733522 has 16 divisors (see below), whose sum is σ = 99688843800. Its totient is φ = 33024164352.

The previous prime is 66253733503. The next prime is 66253733591. The reversal of 66253733522 is 22533735266.

It can be written as a sum of positive squares in 4 ways, for example, as 62985438961 + 3268294561 = 250969^2 + 57169^2 .

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, 3965378 + ... + 3982050.

Almost surely, 2^66253733522 is an apocalyptic number.

66253733522 is a deficient number, since it is larger than the sum of its proper divisors (33435110278).

66253733522 is a wasteful number, since it uses less digits than its factorization.

66253733522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22717.

The product of its digits is 1360800, while the sum is 44.

The spelling of 66253733522 in words is "sixty-six billion, two hundred fifty-three million, seven hundred thirty-three thousand, five hundred twenty-two".