366505505663 has 8 divisors (see below), whose sum is σ = 401917510656. Its totient is φ = 331442387800.

The previous prime is 366505505627. The next prime is 366505505689.

It is a happy number.

366505505663 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 366505505663 - 2⁸ = 366505505407 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 (366505525663) 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, 87219581 + ... + 87223782.

It is an arithmetic number, because the mean of its divisors is an integer number (50239688832).

Almost surely, 2^366505505663 is an apocalyptic number.

366505505663 is a deficient number, since it is larger than the sum of its proper divisors (35412004993).

366505505663 is a wasteful number, since it uses less digits than its factorization.

366505505663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174443565.

The product of its (nonzero) digits is 7290000, while the sum is 50.

The spelling of 366505505663 in words is "three hundred sixty-six billion, five hundred five million, five hundred five thousand, six hundred sixty-three".