66004820820242 has 16 divisors (see below), whose sum is σ = 99133293939264. Its totient is φ = 32960408910000.

The previous prime is 66004820820223. The next prime is 66004820820277. The reversal of 66004820820242 is 24202802840066.

It is a junction number, because it is equal to n+sod(n) for n = 66004820820193 and 66004820820202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1958117 + ... + 11655207.

It is an arithmetic number, because the mean of its divisors is an integer number (6195830871204).

Almost surely, 2^{66004820820242} is an apocalyptic number.

66004820820242 is a deficient number, since it is larger than the sum of its proper divisors (33128473119022).

66004820820242 is a wasteful number, since it uses less digits than its factorization.

66004820820242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701425.

The product of its (nonzero) digits is 589824, while the sum is 44.

The spelling of 66004820820242 in words is "sixty-six trillion, four billion, eight hundred twenty million, eight hundred twenty thousand, two hundred forty-two".