366666771 has 4 divisors (see below), whose sum is σ = 488889032. Its totient is φ = 244444512.

The previous prime is 366666757. The next prime is 366666779. The reversal of 366666771 is 177666663.

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

It is not a de Polignac number, because 366666771 - 2¹¹ = 366664723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 366666771.

It is not an unprimeable number, because it can be changed into a prime (366666779) 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, 61111126 + ... + 61111131.

It is an arithmetic number, because the mean of its divisors is an integer number (122222258).

Almost surely, 2^366666771 is an apocalyptic number.

366666771 is a deficient number, since it is larger than the sum of its proper divisors (122222261).

366666771 is a wasteful number, since it uses less digits than its factorization.

366666771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122222260.

The product of its digits is 1143072, while the sum is 48.

The square root of 366666771 is about 19148.5448794419. The cubic root of 366666771 is about 715.7431242268.

The spelling of 366666771 in words is "three hundred sixty-six million, six hundred sixty-six thousand, seven hundred seventy-one".