11656355 has 4 divisors (see below), whose sum is σ = 13987632. Its totient is φ = 9325080.

The previous prime is 11656349. The next prime is 11656357. The reversal of 11656355 is 55365611.

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

It is not a de Polignac number, because 11656355 - 2¹⁶ = 11590819 is a prime.

It is a super-2 number, since 2×11656355² = 271741223772050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11656357) 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 3 ways as a sum of consecutive naturals, for example, 1165631 + ... + 1165640.

It is an arithmetic number, because the mean of its divisors is an integer number (3496908).

Almost surely, 2^11656355 is an apocalyptic number.

11656355 is a deficient number, since it is larger than the sum of its proper divisors (2331277).

11656355 is an equidigital number, since it uses as much as digits as its factorization.

11656355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331276.

The product of its digits is 13500, while the sum is 32.

The square root of 11656355 is about 3414.1404481948. The cubic root of 11656355 is about 226.7362303309.

The spelling of 11656355 in words is "eleven million, six hundred fifty-six thousand, three hundred fifty-five".