136444634275220 has 12 divisors (see below), whose sum is σ = 286533731978004. Its totient is φ = 54577853710080.

The previous prime is 136444634275207. The next prime is 136444634275223. The reversal of 136444634275220 is 22572436444631.

It can be written as a sum of positive squares in 2 ways, for example, as 34902171733636 + 101542462541584 = 5907806^2 + 10076828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136444634275223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3411115856861 + ... + 3411115856900.

It is an arithmetic number, because the mean of its divisors is an integer number (23877810998167).

Almost surely, 2^{136444634275220} is an apocalyptic number.

136444634275220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136444634275220 is an abundant number, since it is smaller than the sum of its proper divisors (150089097702784).

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

136444634275220 is a wasteful number, since it uses less digits than its factorization.

136444634275220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822231713770 (or 6822231713768 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 53.

The spelling of 136444634275220 in words is "one hundred thirty-six trillion, four hundred forty-four billion, six hundred thirty-four million, two hundred seventy-five thousand, two hundred twenty".