136441566 has 48 divisors (see below), whose sum is σ = 310826880. Its totient is φ = 43171920.

The previous prime is 136441559. The next prime is 136441573. The reversal of 136441566 is 665144631.

It is a happy number.

136441566 is a `hidden beast` number, since 1 + 3 + 644 + 1 + 5 + 6 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (136441559) and next prime (136441573).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 136441566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56361 + ... + 58731.

It is an arithmetic number, because the mean of its divisors is an integer number (6475560).

Almost surely, 2^136441566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136441566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155413440).

136441566 is an abundant number, since it is smaller than the sum of its proper divisors (174385314).

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

136441566 is a wasteful number, since it uses less digits than its factorization.

136441566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541 (or 2538 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 136441566 is about 11680.8204335141. The cubic root of 136441566 is about 514.8122808473.

The spelling of 136441566 in words is "one hundred thirty-six million, four hundred forty-one thousand, five hundred sixty-six".