66062160656580 has 192 divisors, whose sum is σ = 204135081292800. Its totient is φ = 15829482048000.

The previous prime is 66062160656543. The next prime is 66062160656599. The reversal of 66062160656580 is 8565606126066.

66062160656580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66062160656580.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38285271 + ... + 39973569.

It is an arithmetic number, because the mean of its divisors is an integer number (1063203548400).

Almost surely, 2^{66062160656580} is an apocalyptic number.

66062160656580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66062160656580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102067540646400).

66062160656580 is an abundant number, since it is smaller than the sum of its proper divisors (138072920636220).

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

66062160656580 is a wasteful number, since it uses less digits than its factorization.

66062160656580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689010 (or 1689008 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 57.

The spelling of 66062160656580 in words is "sixty-six trillion, sixty-two billion, one hundred sixty million, six hundred fifty-six thousand, five hundred eighty".