366845505548663 has 4 divisors (see below), whose sum is σ = 366861637030248. Its totient is φ = 366829374067080.

The previous prime is 366845505548597. The next prime is 366845505548677.

366845505548663 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 366845505548663 - 2²² = 366845501354359 is a prime.

It is a super-2 number, since 2×366845505548663² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366845505508663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8065706681 + ... + 8065752162.

It is an arithmetic number, because the mean of its divisors is an integer number (91715409257562).

Almost surely, 2^{366845505548663} is an apocalyptic number.

366845505548663 is a deficient number, since it is larger than the sum of its proper divisors (16131481585).

366845505548663 is a wasteful number, since it uses less digits than its factorization.

366845505548663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16131481584.

The product of its (nonzero) digits is 7464960000, while the sum is 74.

The spelling of 366845505548663 in words is "three hundred sixty-six trillion, eight hundred forty-five billion, five hundred five million, five hundred forty-eight thousand, six hundred sixty-three".