135665146532 has 12 divisors (see below), whose sum is σ = 237430856796. Its totient is φ = 67827758880.

The previous prime is 135665146523. The next prime is 135665146537. The reversal of 135665146532 is 235641566531.

It can be written as a sum of positive squares in 2 ways, for example, as 99593261056 + 36071885476 = 315584^2 + 189926^2 .

It is not an unprimeable number, because it can be changed into a prime (135665146537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139819 + ... + 1253202.

It is an arithmetic number, because the mean of its divisors is an integer number (19785904733).

Almost surely, 2^135665146532 is an apocalyptic number.

It is an amenable number.

135665146532 is a deficient number, since it is larger than the sum of its proper divisors (101765710264).

135665146532 is a wasteful number, since it uses less digits than its factorization.

135665146532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407198 (or 2407196 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 47.

The spelling of 135665146532 in words is "one hundred thirty-five billion, six hundred sixty-five million, one hundred forty-six thousand, five hundred thirty-two".