506646366 has 16 divisors (see below), whose sum is σ = 1014076800. Its totient is φ = 168751448.

The previous prime is 506646319. The next prime is 506646367. The reversal of 506646366 is 663646605.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506646367) 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, 24096 + ... + 39923.

It is an arithmetic number, because the mean of its divisors is an integer number (63379800).

Almost surely, 2^506646366 is an apocalyptic number.

506646366 is an abundant number, since it is smaller than the sum of its proper divisors (507430434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506646366 is a wasteful number, since it uses less digits than its factorization.

506646366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65343.

The product of its (nonzero) digits is 466560, while the sum is 42.

The square root of 506646366 is about 22508.8064099365. The cubic root of 506646366 is about 797.2018734787.

The spelling of 506646366 in words is "five hundred six million, six hundred forty-six thousand, three hundred sixty-six".