11641618 has 16 divisors (see below), whose sum is σ = 17938944. Its totient is φ = 5663520.

The previous prime is 11641613. The next prime is 11641621. The reversal of 11641618 is 81614611.

It is not an unprimeable number, because it can be changed into a prime (11641613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25246 + ... + 25702.

It is an arithmetic number, because the mean of its divisors is an integer number (1121184).

Almost surely, 2^11641618 is an apocalyptic number.

11641618 is a deficient number, since it is larger than the sum of its proper divisors (6297326).

11641618 is a wasteful number, since it uses less digits than its factorization.

11641618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777.

The product of its digits is 1152, while the sum is 28.

The square root of 11641618 is about 3411.9815357062. The cubic root of 11641618 is about 226.6406366687.

The spelling of 11641618 in words is "eleven million, six hundred forty-one thousand, six hundred eighteen".