66565036308 has 48 divisors (see below), whose sum is σ = 156579103296. Its totient is φ = 22008844800.

The previous prime is 66565036303. The next prime is 66565036309. The reversal of 66565036308 is 80363056566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66565036303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861883 + ... + 935933.

It is an arithmetic number, because the mean of its divisors is an integer number (3262064652).

Almost surely, 2^66565036308 is an apocalyptic number.

It is an amenable number.

66565036308 is an abundant number, since it is smaller than the sum of its proper divisors (90014066988).

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

66565036308 is a wasteful number, since it uses less digits than its factorization.

66565036308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74664 (or 74662 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 66565036308 in words is "sixty-six billion, five hundred sixty-five million, thirty-six thousand, three hundred eight".