11641568 has 12 divisors (see below), whose sum is σ = 22919400. Its totient is φ = 5820768.

The previous prime is 11641559. The next prime is 11641579. The reversal of 11641568 is 86514611.

It is a super-2 number, since 2×11641568² = 271052210997248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 363799 = 11641568 / (1 + 1 + 6 + 4 + 1 + 5 + 6 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181868 + ... + 181931.

It is an arithmetic number, because the mean of its divisors is an integer number (1909950).

Almost surely, 2^11641568 is an apocalyptic number.

It is an amenable number.

11641568 is a deficient number, since it is larger than the sum of its proper divisors (11277832).

11641568 is an equidigital number, since it uses as much as digits as its factorization.

11641568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363809 (or 363801 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 11641568 is about 3411.9742085778. The cubic root of 11641568 is about 226.6403121993.

The spelling of 11641568 in words is "eleven million, six hundred forty-one thousand, five hundred sixty-eight".