405336405661 has 8 divisors (see below), whose sum is σ = 442277560800. Its totient is φ = 368410649040.

The previous prime is 405336405653. The next prime is 405336405679. The reversal of 405336405661 is 166504633504.

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 405336405661 - 2³ = 405336405653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405336405601) 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, 3794551 + ... + 3899908.

It is an arithmetic number, because the mean of its divisors is an integer number (55284695100).

Almost surely, 2^405336405661 is an apocalyptic number.

It is an amenable number.

405336405661 is a deficient number, since it is larger than the sum of its proper divisors (36941155139).

405336405661 is a wasteful number, since it uses less digits than its factorization.

405336405661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699259.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 405336405661 in words is "four hundred five billion, three hundred thirty-six million, four hundred five thousand, six hundred sixty-one".