11420566 has 16 divisors (see below), whose sum is σ = 18223056. Its totient is φ = 5349376.

The previous prime is 11420543. The next prime is 11420567. The reversal of 11420566 is 66502411.

11420566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×11420566³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11420566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420567) 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, 8085 + ... + 9391.

It is an arithmetic number, because the mean of its divisors is an integer number (1138941).

Almost surely, 2^11420566 is an apocalyptic number.

11420566 is a deficient number, since it is larger than the sum of its proper divisors (6802490).

11420566 is a wasteful number, since it uses less digits than its factorization.

11420566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 11420566 is about 3379.4327926444. The cubic root of 11420566 is about 225.1969699048.

Adding to 11420566 its reverse (66502411), we get a palindrome (77922977).

The spelling of 11420566 in words is "eleven million, four hundred twenty thousand, five hundred sixty-six".