366643525346663 has 4 divisors (see below), whose sum is σ = 366643932197640. Its totient is φ = 366643118495688.

The previous prime is 366643525346647. The next prime is 366643525346677.

It is a happy number.

366643525346663 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 366643525346663 - 2⁴ = 366643525346647 is a prime.

It is a super-2 number, since 2×366643525346663² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 366643525346593 and 366643525346602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (366643525376663) 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, 202070720 + ... + 203877077.

It is an arithmetic number, because the mean of its divisors is an integer number (91660983049410).

Almost surely, 2^{366643525346663} is an apocalyptic number.

366643525346663 is a deficient number, since it is larger than the sum of its proper divisors (406850977).

366643525346663 is an equidigital number, since it uses as much as digits as its factorization.

366643525346663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406850976.

The product of its digits is 3023308800, while the sum is 68.

The spelling of 366643525346663 in words is "three hundred sixty-six trillion, six hundred forty-three billion, five hundred twenty-five million, three hundred forty-six thousand, six hundred sixty-three".