2661135266135 has 8 divisors (see below), whose sum is σ = 3193489832400. Its totient is φ = 2128823204224.

The previous prime is 2661135266089. The next prime is 2661135266137. The reversal of 2661135266135 is 5316625311662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2661135266135 - 2¹⁶ = 2661135200599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2661135266135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661135266137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10488185 + ... + 10738914.

It is an arithmetic number, because the mean of its divisors is an integer number (399186229050).

Almost surely, 2^{2661135266135} is an apocalyptic number.

2661135266135 is a deficient number, since it is larger than the sum of its proper divisors (532354566265).

2661135266135 is a wasteful number, since it uses less digits than its factorization.

2661135266135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21252177.

The product of its digits is 1166400, while the sum is 47.

The spelling of 2661135266135 in words is "two trillion, six hundred sixty-one billion, one hundred thirty-five million, two hundred sixty-six thousand, one hundred thirty-five".