11656955 has 4 divisors (see below), whose sum is σ = 13988352. Its totient is φ = 9325560.

The previous prime is 11656933. The next prime is 11656973. The reversal of 11656955 is 55965611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11656955 - 2⁶ = 11656891 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165691 + ... + 1165700.

It is an arithmetic number, because the mean of its divisors is an integer number (3497088).

Almost surely, 2^11656955 is an apocalyptic number.

11656955 is a deficient number, since it is larger than the sum of its proper divisors (2331397).

11656955 is an equidigital number, since it uses as much as digits as its factorization.

11656955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331396.

The product of its digits is 40500, while the sum is 38.

The square root of 11656955 is about 3414.2283169115. The cubic root of 11656955 is about 226.7401206094.

The spelling of 11656955 in words is "eleven million, six hundred fifty-six thousand, nine hundred fifty-five".