135320215546 has 4 divisors (see below), whose sum is σ = 202980323322. Its totient is φ = 67660107772.

The previous prime is 135320215531. The next prime is 135320215673. The reversal of 135320215546 is 645512023531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 130859445025 + 4460770521 = 361745^2 + 66789^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33830053885 + ... + 33830053888.

Almost surely, 2^135320215546 is an apocalyptic number.

135320215546 is a deficient number, since it is larger than the sum of its proper divisors (67660107776).

135320215546 is an equidigital number, since it uses as much as digits as its factorization.

135320215546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67660107775.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 135320215546 in words is "one hundred thirty-five billion, three hundred twenty million, two hundred fifteen thousand, five hundred forty-six".