135266547636 has 144 divisors (see below), whose sum is σ = 380513427840. Its totient is φ = 40166979840.

The previous prime is 135266547599. The next prime is 135266547641. The reversal of 135266547636 is 636745662531.

135266547636 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 66 + 547 + 6 + 36 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19284466 + ... + 19291478.

It is an arithmetic number, because the mean of its divisors is an integer number (2642454360).

Almost surely, 2^135266547636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135266547636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190256713920).

135266547636 is an abundant number, since it is smaller than the sum of its proper divisors (245246880204).

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

135266547636 is a wasteful number, since it uses less digits than its factorization.

135266547636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8006 (or 8001 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 54.

It can be divided in two parts, 1352665 and 47636, that added together give a triangular number (1400301 = T₁₆₇₃).

The spelling of 135266547636 in words is "one hundred thirty-five billion, two hundred sixty-six million, five hundred forty-seven thousand, six hundred thirty-six".