365666645 has 8 divisors (see below), whose sum is σ = 439240920. Its totient is φ = 292239360.

The previous prime is 365666641. The next prime is 365666657. The reversal of 365666645 is 546666563.

It can be written as a sum of positive squares in 4 ways, for example, as 8532241 + 357134404 = 2921^2 + 18898^2 .

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

It is not a de Polignac number, because 365666645 - 2² = 365666641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 365666645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365666641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31196 + ... + 41285.

It is an arithmetic number, because the mean of its divisors is an integer number (54905115).

Almost surely, 2^365666645 is an apocalyptic number.

It is an amenable number.

365666645 is a deficient number, since it is larger than the sum of its proper divisors (73574275).

365666645 is a wasteful number, since it uses less digits than its factorization.

365666645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73495.

The product of its digits is 2332800, while the sum is 47.

The square root of 365666645 is about 19122.4121124925. The cubic root of 365666645 is about 715.0917742892.

The spelling of 365666645 in words is "three hundred sixty-five million, six hundred sixty-six thousand, six hundred forty-five".