135545772546 has 96 divisors (see below), whose sum is σ = 328622820480. Its totient is φ = 41374685952.

The previous prime is 135545772521. The next prime is 135545772559. The reversal of 135545772546 is 645277545531.

It is a happy number.

135545772546 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 4 + 577 + 25 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135545772492 and 135545772501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 460051 + ... + 694793.

It is an arithmetic number, because the mean of its divisors is an integer number (3423154380).

Almost surely, 2^135545772546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135545772546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164311410240).

135545772546 is an abundant number, since it is smaller than the sum of its proper divisors (193077047934).

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

135545772546 is a wasteful number, since it uses less digits than its factorization.

135545772546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234825 (or 234802 counting only the distinct ones).

The product of its digits is 17640000, while the sum is 54.

The spelling of 135545772546 in words is "one hundred thirty-five billion, five hundred forty-five million, seven hundred seventy-two thousand, five hundred forty-six".