365201661 has 8 divisors (see below), whose sum is σ = 531202464. Its totient is φ = 221334320.

The previous prime is 365201651. The next prime is 365201677. The reversal of 365201661 is 166102563.

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

It is a cyclic number.

It is not a de Polignac number, because 365201661 - 2⁶ = 365201597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365201651) 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, 5533326 + ... + 5533391.

It is an arithmetic number, because the mean of its divisors is an integer number (66400308).

Almost surely, 2^365201661 is an apocalyptic number.

It is an amenable number.

365201661 is a deficient number, since it is larger than the sum of its proper divisors (166000803).

365201661 is a wasteful number, since it uses less digits than its factorization.

365201661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066731.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 365201661 is about 19110.2501553486. The cubic root of 365201661 is about 714.7885406593.

The spelling of 365201661 in words is "three hundred sixty-five million, two hundred one thousand, six hundred sixty-one".