135260306661 has 8 divisors (see below), whose sum is σ = 184541193760. Its totient is φ = 88076478672.

The previous prime is 135260306641. The next prime is 135260306681. The reversal of 135260306661 is 166603062531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (135260306641) and next prime (135260306681).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-135260306661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135260306641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524264626 + ... + 524264883.

It is an arithmetic number, because the mean of its divisors is an integer number (23067649220).

Almost surely, 2^135260306661 is an apocalyptic number.

It is an amenable number.

135260306661 is a deficient number, since it is larger than the sum of its proper divisors (49280887099).

135260306661 is a wasteful number, since it uses less digits than its factorization.

135260306661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048529555.

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 135260306661 in words is "one hundred thirty-five billion, two hundred sixty million, three hundred six thousand, six hundred sixty-one".