66556202344 has 16 divisors (see below), whose sum is σ = 130218657120. Its totient is φ = 31831227120.

The previous prime is 66556202329. The next prime is 66556202351. The reversal of 66556202344 is 44320265566.

It is a super-3 number, since 3×66556202344³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66556202344.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180859062 + ... + 180859429.

It is an arithmetic number, because the mean of its divisors is an integer number (8138666070).

Almost surely, 2^66556202344 is an apocalyptic number.

It is an amenable number.

66556202344 is a deficient number, since it is larger than the sum of its proper divisors (63662454776).

66556202344 is a wasteful number, since it uses less digits than its factorization.

66556202344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361718520 (or 361718516 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 66556202344 in words is "sixty-six billion, five hundred fifty-six million, two hundred two thousand, three hundred forty-four".