11920566 has 32 divisors (see below), whose sum is σ = 28189440. Its totient is φ = 3288096.

The previous prime is 11920561. The next prime is 11920591. The reversal of 11920566 is 66502911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920561) 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, 3676 + ... + 6111.

It is an arithmetic number, because the mean of its divisors is an integer number (880920).

Almost surely, 2^11920566 is an apocalyptic number.

11920566 is an abundant number, since it is smaller than the sum of its proper divisors (16268874).

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

11920566 is a wasteful number, since it uses less digits than its factorization.

11920566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9828.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 11920566 is about 3452.6172681026. The cubic root of 11920566 is about 228.4365673573.

The spelling of 11920566 in words is "eleven million, nine hundred twenty thousand, five hundred sixty-six".