66883638352633 has 8 divisors (see below), whose sum is σ = 66973522675136. Its totient is φ = 66793803930000.

The previous prime is 66883638352621. The next prime is 66883638352639. The reversal of 66883638352633 is 33625383638866.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66883638352633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66883638352639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9792066 + ... + 15154267.

It is an arithmetic number, because the mean of its divisors is an integer number (8371690334392).

Almost surely, 2^{66883638352633} is an apocalyptic number.

It is an amenable number.

66883638352633 is a deficient number, since it is larger than the sum of its proper divisors (89884322503).

66883638352633 is a wasteful number, since it uses less digits than its factorization.

66883638352633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24949935.

The product of its digits is 1612431360, while the sum is 70.

The spelling of 66883638352633 in words is "sixty-six trillion, eight hundred eighty-three billion, six hundred thirty-eight million, three hundred fifty-two thousand, six hundred thirty-three".