135666410153 has 4 divisors (see below), whose sum is σ = 138975347028. Its totient is φ = 132357473280.

The previous prime is 135666410147. The next prime is 135666410227. The reversal of 135666410153 is 351014666531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 351014666531 = 19073 ⋅18403747.

It can be written as a sum of positive squares in 2 ways, for example, as 17586207769 + 118080202384 = 132613^2 + 343628^2 .

It is a cyclic number.

It is not a de Polignac number, because 135666410153 - 2¹⁴ = 135666393769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 3308936833 = 135666410153 / (1 + 3 + 5 + 6 + 6 + 6 + 4 + 1 + 0 + 1 + 5 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135666410153.

It is not an unprimeable number, because it can be changed into a prime (135666410753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1654468376 + ... + 1654468457.

It is an arithmetic number, because the mean of its divisors is an integer number (34743836757).

Almost surely, 2^135666410153 is an apocalyptic number.

It is an amenable number.

135666410153 is a deficient number, since it is larger than the sum of its proper divisors (3308936875).

135666410153 is an equidigital number, since it uses as much as digits as its factorization.

135666410153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308936874.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 135666410153 in words is "one hundred thirty-five billion, six hundred sixty-six million, four hundred ten thousand, one hundred fifty-three".