135420361611 has 4 divisors (see below), whose sum is σ = 180560482152. Its totient is φ = 90280241072.

The previous prime is 135420361597. The next prime is 135420361621. The reversal of 135420361611 is 116163024531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 135420361611 - 2¹⁰ = 135420360587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135420361621) 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, 22570060266 + ... + 22570060271.

It is an arithmetic number, because the mean of its divisors is an integer number (45140120538).

Almost surely, 2^135420361611 is an apocalyptic number.

135420361611 is a deficient number, since it is larger than the sum of its proper divisors (45140120541).

135420361611 is an equidigital number, since it uses as much as digits as its factorization.

135420361611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45140120540.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 135420361611 in words is "one hundred thirty-five billion, four hundred twenty million, three hundred sixty-one thousand, six hundred eleven".