366866081 has 4 divisors (see below), whose sum is σ = 367271472. Its totient is φ = 366460692.

The previous prime is 366866057. The next prime is 366866083. The reversal of 366866081 is 180668663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 366866081 - 2¹⁴ = 366849697 is a prime.

It is a super-2 number, since 2×366866081² = 269181442776597122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366866083) 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, 201335 + ... + 203148.

It is an arithmetic number, because the mean of its divisors is an integer number (91817868).

Almost surely, 2^366866081 is an apocalyptic number.

It is an amenable number.

366866081 is a deficient number, since it is larger than the sum of its proper divisors (405391).

366866081 is an equidigital number, since it uses as much as digits as its factorization.

366866081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405390.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 366866081 is about 19153.7484843046. The cubic root of 366866081 is about 715.8727868464.

The spelling of 366866081 in words is "three hundred sixty-six million, eight hundred sixty-six thousand, eighty-one".