11661022 has 24 divisors (see below), whose sum is σ = 19092672. Its totient is φ = 5335200.

The previous prime is 11661019. The next prime is 11661037. The reversal of 11661022 is 22016611.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22122 + ... + 22642.

It is an arithmetic number, because the mean of its divisors is an integer number (795528).

Almost surely, 2^11661022 is an apocalyptic number.

11661022 is a deficient number, since it is larger than the sum of its proper divisors (7431650).

11661022 is a wasteful number, since it uses less digits than its factorization.

11661022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11661022 is about 3414.8238607577. The cubic root of 11661022 is about 226.7664866958.

Adding to 11661022 its reverse (22016611), we get a palindrome (33677633).

The spelling of 11661022 in words is "eleven million, six hundred sixty-one thousand, twenty-two".