66577440884070 has 16 divisors (see below), whose sum is σ = 159785858121840. Its totient is φ = 17753984235744.

The previous prime is 66577440884029. The next prime is 66577440884107. The reversal of 66577440884070 is 7048804477566.

66577440884070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66577440883992 and 66577440884010.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1109624014705 + ... + 1109624014764.

It is an arithmetic number, because the mean of its divisors is an integer number (9986616132615).

Almost surely, 2^{66577440884070} is an apocalyptic number.

66577440884070 is an abundant number, since it is smaller than the sum of its proper divisors (93208417237770).

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

66577440884070 is a wasteful number, since it uses less digits than its factorization.

66577440884070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219248029479.

The product of its (nonzero) digits is 252887040, while the sum is 66.

The spelling of 66577440884070 in words is "sixty-six trillion, five hundred seventy-seven billion, four hundred forty million, eight hundred eighty-four thousand, seventy".