66060044206620 has 48 divisors (see below), whose sum is σ = 188903615781888. Its totient is φ = 17241203026240.

The previous prime is 66060044206591. The next prime is 66060044206699. The reversal of 66060044206620 is 2660244006066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11712770976 + ... + 11712776615.

It is an arithmetic number, because the mean of its divisors is an integer number (3935491995456).

Almost surely, 2^{66060044206620} is an apocalyptic number.

66060044206620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66060044206620 is an abundant number, since it is smaller than the sum of its proper divisors (122843571575268).

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

66060044206620 is a wasteful number, since it uses less digits than its factorization.

66060044206620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23425547650 (or 23425547648 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 66060044206620 in words is "sixty-six trillion, sixty billion, forty-four million, two hundred six thousand, six hundred twenty".