366989787989663 has 16 divisors (see below), whose sum is σ = 383886303445440. Its totient is φ = 350171660872704.

The previous prime is 366989787989603. The next prime is 366989787989743.

366989787989663 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366989787989663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366989787989603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1297958795 + ... + 1298241507.

It is an arithmetic number, because the mean of its divisors is an integer number (23992893965340).

Almost surely, 2^{366989787989663} is an apocalyptic number.

366989787989663 is a deficient number, since it is larger than the sum of its proper divisors (16896515455777).

366989787989663 is a wasteful number, since it uses less digits than its factorization.

366989787989663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421138.

The product of its digits is 1919922020352, while the sum is 104.

The spelling of 366989787989663 in words is "three hundred sixty-six trillion, nine hundred eighty-nine billion, seven hundred eighty-seven million, nine hundred eighty-nine thousand, six hundred sixty-three".