366665880273 has 32 divisors (see below), whose sum is σ = 609594501120. Its totient is φ = 190453282560.

The previous prime is 366665880271. The next prime is 366665880277. The reversal of 366665880273 is 372088566663.

It is a happy number.

It is not a de Polignac number, because 366665880273 - 2¹ = 366665880271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (366665880271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1963593 + ... + 2142201.

It is an arithmetic number, because the mean of its divisors is an integer number (19049828160).

Almost surely, 2^366665880273 is an apocalyptic number.

366665880273 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

366665880273 is a deficient number, since it is larger than the sum of its proper divisors (242928620847).

366665880273 is a wasteful number, since it uses less digits than its factorization.

366665880273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187517.

The product of its (nonzero) digits is 52254720, while the sum is 60.

The spelling of 366665880273 in words is "three hundred sixty-six billion, six hundred sixty-five million, eight hundred eighty thousand, two hundred seventy-three".