5656642555111 has 8 divisors (see below), whose sum is σ = 5902655491584. Its totient is φ = 5410635615000.

The previous prime is 5656642555073. The next prime is 5656642555129. The reversal of 5656642555111 is 1115552466565.

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 5656642555111 - 2⁹ = 5656642554599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656642555411) 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, 484486 + ... + 3398236.

It is an arithmetic number, because the mean of its divisors is an integer number (737831936448).

Almost surely, 2^{5656642555111} is an apocalyptic number.

5656642555111 is a deficient number, since it is larger than the sum of its proper divisors (246012936473).

5656642555111 is a wasteful number, since it uses less digits than its factorization.

5656642555111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998181.

The product of its digits is 5400000, while the sum is 52.

The spelling of 5656642555111 in words is "five trillion, six hundred fifty-six billion, six hundred forty-two million, five hundred fifty-five thousand, one hundred eleven".