2135236525161 has 16 divisors (see below), whose sum is σ = 2930118347520. Its totient is φ = 1382504233040.

The previous prime is 2135236525133. The next prime is 2135236525181. The reversal of 2135236525161 is 1615256325312.

It is a cyclic number.

It is not a de Polignac number, because 2135236525161 - 2⁷ = 2135236525033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2135236525181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72656895 + ... + 72686276.

It is an arithmetic number, because the mean of its divisors is an integer number (183132396720).

Almost surely, 2^{2135236525161} is an apocalyptic number.

It is an amenable number.

2135236525161 is a deficient number, since it is larger than the sum of its proper divisors (794881822359).

2135236525161 is a wasteful number, since it uses less digits than its factorization.

2135236525161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145343316.

The product of its digits is 324000, while the sum is 42.

The spelling of 2135236525161 in words is "two trillion, one hundred thirty-five billion, two hundred thirty-six million, five hundred twenty-five thousand, one hundred sixty-one".