366661166365 has 8 divisors (see below), whose sum is σ = 473839045848. Its totient is φ = 270765168960.

The previous prime is 366661166359. The next prime is 366661166407. The reversal of 366661166365 is 563661166663.

It can be written as a sum of positive squares in 4 ways, for example, as 86620249 + 366574546116 = 9307^2 + 605454^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 366661166365 - 2¹³ = 366661158173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2820470446 + ... + 2820470575.

It is an arithmetic number, because the mean of its divisors is an integer number (59229880731).

Almost surely, 2^366661166365 is an apocalyptic number.

It is an amenable number.

366661166365 is a deficient number, since it is larger than the sum of its proper divisors (107177879483).

366661166365 is a wasteful number, since it uses less digits than its factorization.

366661166365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640941039.

The product of its digits is 12597120, while the sum is 55.

The spelling of 366661166365 in words is "three hundred sixty-six billion, six hundred sixty-one million, one hundred sixty-six thousand, three hundred sixty-five".