561132066 has 32 divisors (see below), whose sum is σ = 1228981248. Its totient is φ = 169388240.

The previous prime is 561132059. The next prime is 561132071. The reversal of 561132066 is 660231165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195 + ... + 33521.

It is an arithmetic number, because the mean of its divisors is an integer number (38405664).

Almost surely, 2^561132066 is an apocalyptic number.

561132066 is an abundant number, since it is smaller than the sum of its proper divisors (667849182).

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

561132066 is a wasteful number, since it uses less digits than its factorization.

561132066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32606.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 561132066 is about 23688.2263160415. The cubic root of 561132066 is about 824.8121107478.

Subtracting 561132066 from its reverse (660231165), we obtain a palindrome (99099099).

The spelling of 561132066 in words is "five hundred sixty-one million, one hundred thirty-two thousand, sixty-six".