11965660 has 24 divisors (see below), whose sum is σ = 28717920. Its totient is φ = 4102464.

The previous prime is 11965643. The next prime is 11965669. The reversal of 11965660 is 6656911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11965669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42595 + ... + 42874.

It is an arithmetic number, because the mean of its divisors is an integer number (1196580).

Almost surely, 2^11965660 is an apocalyptic number.

11965660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11965660 is an abundant number, since it is smaller than the sum of its proper divisors (16752260).

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

11965660 is a wasteful number, since it uses less digits than its factorization.

11965660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85485 (or 85483 counting only the distinct ones).

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

The square root of 11965660 is about 3459.1415119940. The cubic root of 11965660 is about 228.7242538234.

It can be divided in two parts, 119656 and 60, that added together give a square (119716 = 346²).

The spelling of 11965660 in words is "eleven million, nine hundred sixty-five thousand, six hundred sixty".