11661064 has 8 divisors (see below), whose sum is σ = 21864510. Its totient is φ = 5830528.

The previous prime is 11661061. The next prime is 11661073. The reversal of 11661064 is 46016611.

11661064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6100900 + 5560164 = 2470^2 + 2358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11661064² = 271960827224192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11661061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728809 + ... + 728824.

Almost surely, 2^11661064 is an apocalyptic number.

It is an amenable number.

11661064 is a deficient number, since it is larger than the sum of its proper divisors (10203446).

11661064 is a wasteful number, since it uses less digits than its factorization.

11661064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457639 (or 1457635 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 11661064 is about 3414.8300104105. The cubic root of 11661064 is about 226.7667589470.

Adding to 11661064 its reverse (46016611), we get a palindrome (57677675).

The spelling of 11661064 in words is "eleven million, six hundred sixty-one thousand, sixty-four".