135561562305 has 32 divisors (see below), whose sum is σ = 236397280896. Its totient is φ = 65933919744.

The previous prime is 135561562271. The next prime is 135561562321. The reversal of 135561562305 is 503265165531.

It is not a de Polignac number, because 135561562305 - 2¹⁰ = 135561561281 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4171692 + ... + 4204061.

It is an arithmetic number, because the mean of its divisors is an integer number (7387415028).

Almost surely, 2^135561562305 is an apocalyptic number.

135561562305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135561562305 is a deficient number, since it is larger than the sum of its proper divisors (100835718591).

135561562305 is a wasteful number, since it uses less digits than its factorization.

135561562305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375857.

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 135561562305 in words is "one hundred thirty-five billion, five hundred sixty-one million, five hundred sixty-two thousand, three hundred five".