6135055642561 has 4 divisors (see below), whose sum is σ = 6495941268612. Its totient is φ = 5774170016512.

The previous prime is 6135055642553. The next prime is 6135055642577. The reversal of 6135055642561 is 1652465505316.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2777952224961 + 3357103417600 = 1666719^2 + 1832240^2 .

It is a cyclic number.

It is not a de Polignac number, because 6135055642561 - 2³ = 6135055642553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6135055642501) 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, 180442813000 + ... + 180442813033.

It is an arithmetic number, because the mean of its divisors is an integer number (1623985317153).

Almost surely, 2^{6135055642561} is an apocalyptic number.

It is an amenable number.

6135055642561 is a deficient number, since it is larger than the sum of its proper divisors (360885626051).

6135055642561 is a wasteful number, since it uses less digits than its factorization.

6135055642561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360885626050.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 6135055642561 in words is "six trillion, one hundred thirty-five billion, fifty-five million, six hundred forty-two thousand, five hundred sixty-one".