66528271682078 has 8 divisors (see below), whose sum is σ = 100578174511872. Its totient is φ = 33002213511456.

The previous prime is 66528271682069. The next prime is 66528271682101. The reversal of 66528271682078 is 87028617282566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66528271681999 and 66528271682017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130961164475 + ... + 130961164982.

It is an arithmetic number, because the mean of its divisors is an integer number (12572271813984).

Almost surely, 2^{66528271682078} is an apocalyptic number.

66528271682078 is a deficient number, since it is larger than the sum of its proper divisors (34049902829794).

66528271682078 is a wasteful number, since it uses less digits than its factorization.

66528271682078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261922329586.

The product of its (nonzero) digits is 216760320, while the sum is 68.

The spelling of 66528271682078 in words is "sixty-six trillion, five hundred twenty-eight billion, two hundred seventy-one million, six hundred eighty-two thousand, seventy-eight".