366778877663 has 8 divisors (see below), whose sum is σ = 409427584896. Its totient is φ = 325681032600.

The previous prime is 366778877639. The next prime is 366778877677.

366778877663 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 366778877663 - 2¹⁴ = 366778861279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366778877623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387715043 + ... + 387715988.

It is an arithmetic number, because the mean of its divisors is an integer number (51178448112).

Almost surely, 2^366778877663 is an apocalyptic number.

366778877663 is a deficient number, since it is larger than the sum of its proper divisors (42648707233).

366778877663 is a wasteful number, since it uses less digits than its factorization.

366778877663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775431085.

The product of its digits is 1792336896, while the sum is 74.

The spelling of 366778877663 in words is "three hundred sixty-six billion, seven hundred seventy-eight million, eight hundred seventy-seven thousand, six hundred sixty-three".