416666643 has 16 divisors (see below), whose sum is σ = 580208640. Its totient is φ = 265472064.

The previous prime is 416666633. The next prime is 416666681. The reversal of 416666643 is 346666614.

It is not a de Polignac number, because 416666643 - 2⁵ = 416666611 is a prime.

It is a super-2 number, since 2×416666643² = 347222182777778898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 416666595 and 416666604.

It is not an unprimeable number, because it can be changed into a prime (416666633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119655 + ... + 123087.

It is an arithmetic number, because the mean of its divisors is an integer number (36263040).

Almost surely, 2^416666643 is an apocalyptic number.

416666643 is a deficient number, since it is larger than the sum of its proper divisors (163541997).

416666643 is a wasteful number, since it uses less digits than its factorization.

416666643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218.

The product of its digits is 373248, while the sum is 42.

The square root of 416666643 is about 20412.4139434806. The cubic root of 416666643 is about 746.9007769515.

The spelling of 416666643 in words is "four hundred sixteen million, six hundred sixty-six thousand, six hundred forty-three".