411620666 has 16 divisors (see below), whose sum is σ = 639414528. Its totient is φ = 198525600.

The previous prime is 411620623. The next prime is 411620681. The reversal of 411620666 is 666026114.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8801 + ... + 30011.

It is an arithmetic number, because the mean of its divisors is an integer number (39963408).

Almost surely, 2^411620666 is an apocalyptic number.

411620666 is a deficient number, since it is larger than the sum of its proper divisors (227793862).

411620666 is a wasteful number, since it uses less digits than its factorization.

411620666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21557.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 411620666 is about 20288.4367559455. The cubic root of 411620666 is about 743.8734477104.

The spelling of 411620666 in words is "four hundred eleven million, six hundred twenty thousand, six hundred sixty-six".