56106011055561 has 8 divisors (see below), whose sum is σ = 75924552274464. Its totient is φ = 36845738603520.

The previous prime is 56106011055559. The next prime is 56106011055569. The reversal of 56106011055561 is 16555011060165.

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

It is not a de Polignac number, because 56106011055561 - 2¹ = 56106011055559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56106011055569) 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, 139567191480 + ... + 139567191881.

It is an arithmetic number, because the mean of its divisors is an integer number (9490569034308).

Almost surely, 2^{56106011055561} is an apocalyptic number.

It is an amenable number.

56106011055561 is a deficient number, since it is larger than the sum of its proper divisors (19818541218903).

56106011055561 is a wasteful number, since it uses less digits than its factorization.

56106011055561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279134383431.

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 56106011055561 in words is "fifty-six trillion, one hundred six billion, eleven million, fifty-five thousand, five hundred sixty-one".