366720066 has 24 divisors (see below), whose sum is σ = 794918124. Its totient is φ = 122184960.

The previous prime is 366720047. The next prime is 366720077. The reversal of 366720066 is 660027663.

It can be written as a sum of positive squares in 2 ways, for example, as 339628041 + 27092025 = 18429^2 + 5205^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 366720066.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64990 + ... + 70406.

Almost surely, 2^366720066 is an apocalyptic number.

366720066 is an abundant number, since it is smaller than the sum of its proper divisors (428198058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

366720066 is a wasteful number, since it uses less digits than its factorization.

366720066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9186 (or 9183 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 366720066 is about 19149.9364489807. The cubic root of 366720066 is about 715.7778002913. Note that the first 3 decimals are identical.

The spelling of 366720066 in words is "three hundred sixty-six million, seven hundred twenty thousand, sixty-six".