416505561 has 8 divisors (see below), whose sum is σ = 555463680. Its totient is φ = 277608912.

The previous prime is 416505527. The next prime is 416505563. The reversal of 416505561 is 165505614.

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

It is not a de Polignac number, because 416505561 - 2¹⁹ = 415981273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (416505563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3895 + ... + 29123.

It is an arithmetic number, because the mean of its divisors is an integer number (69432960).

Almost surely, 2^416505561 is an apocalyptic number.

It is an amenable number.

416505561 is a deficient number, since it is larger than the sum of its proper divisors (138958119).

416505561 is a wasteful number, since it uses less digits than its factorization.

416505561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30735.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 416505561 is about 20408.4678748798. The cubic root of 416505561 is about 746.8045147234.

The spelling of 416505561 in words is "four hundred sixteen million, five hundred five thousand, five hundred sixty-one".