10961566 has 64 divisors (see below), whose sum is σ = 22394880. Its totient is φ = 3893760.

The previous prime is 10961563. The next prime is 10961579. The reversal of 10961566 is 66516901.

10961566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10961563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138715 + ... + 138793.

It is an arithmetic number, because the mean of its divisors is an integer number (349920).

Almost surely, 2^10961566 is an apocalyptic number.

10961566 is an abundant number, since it is smaller than the sum of its proper divisors (11433314).

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

10961566 is a wasteful number, since it uses less digits than its factorization.

10961566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 10961566 is about 3310.8255768010. The cubic root of 10961566 is about 222.1386872507.

It can be divided in two parts, 1096 and 1566, that added together give a palindrome (2662).

The spelling of 10961566 in words is "ten million, nine hundred sixty-one thousand, five hundred sixty-six".