416913561 has 20 divisors (see below), whose sum is σ = 655578000. Its totient is φ = 263312856.

The previous prime is 416913533. The next prime is 416913569. The reversal of 416913561 is 165319614.

416913561 is a `hidden beast` number, since 4 + 1 + 6 + 91 + 3 + 561 = 666.

It is not a de Polignac number, because 416913561 - 2¹⁰ = 416912537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (416913569) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 133911 + ... + 136988.

It is an arithmetic number, because the mean of its divisors is an integer number (32778900).

Almost surely, 2^416913561 is an apocalyptic number.

It is an amenable number.

416913561 is a deficient number, since it is larger than the sum of its proper divisors (238664439).

416913561 is a wasteful number, since it uses less digits than its factorization.

416913561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270930 (or 270921 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 416913561 is about 20418.4612789505. The cubic root of 416913561 is about 747.0482864224.

The spelling of 416913561 in words is "four hundred sixteen million, nine hundred thirteen thousand, five hundred sixty-one".