66501060616683 has 192 divisors, whose sum is σ = 128872255150080. Its totient is φ = 31985617305600.

The previous prime is 66501060616643. The next prime is 66501060616691. The reversal of 66501060616683 is 38661606010566.

66501060616683 is a `hidden beast` number, since 6 + 6 + 5 + 0 + 10 + 6 + 0 + 616 + 6 + 8 + 3 = 666.

It is not a de Polignac number, because 66501060616683 - 2¹² = 66501060612587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66501060616643) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 382171123 + ... + 382345091.

It is an arithmetic number, because the mean of its divisors is an integer number (671209662240).

Almost surely, 2^{66501060616683} is an apocalyptic number.

66501060616683 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

66501060616683 is a deficient number, since it is larger than the sum of its proper divisors (62371194533397).

66501060616683 is a wasteful number, since it uses less digits than its factorization.

66501060616683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174538 (or 174535 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 66501060616683 in words is "sixty-six trillion, five hundred one billion, sixty million, six hundred sixteen thousand, six hundred eighty-three".