66215065362 has 16 divisors (see below), whose sum is σ = 132901415712. Its totient is φ = 21993140960.

The previous prime is 66215065339. The next prime is 66215065373. The reversal of 66215065362 is 26356051266.

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, 19635048 + ... + 19638419.

It is an arithmetic number, because the mean of its divisors is an integer number (8306338482).

Almost surely, 2^66215065362 is an apocalyptic number.

66215065362 is an abundant number, since it is smaller than the sum of its proper divisors (66686350350).

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

66215065362 is a wasteful number, since it uses less digits than its factorization.

66215065362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39273753.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 66215065362 in words is "sixty-six billion, two hundred fifteen million, sixty-five thousand, three hundred sixty-two".