56542666413 has 8 divisors (see below), whose sum is σ = 75408287488. Its totient is φ = 37686078144.

The previous prime is 56542666399. The next prime is 56542666463. The reversal of 56542666413 is 31466624565.

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

It is not a de Polignac number, because 56542666413 - 2⁵ = 56542666381 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 (56542666463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2243581 + ... + 2268642.

It is an arithmetic number, because the mean of its divisors is an integer number (9426035936).

Almost surely, 2^56542666413 is an apocalyptic number.

It is an amenable number.

56542666413 is a deficient number, since it is larger than the sum of its proper divisors (18865621075).

56542666413 is a wasteful number, since it uses less digits than its factorization.

56542666413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516403.

The product of its digits is 3110400, while the sum is 48.

The spelling of 56542666413 in words is "fifty-six billion, five hundred forty-two million, six hundred sixty-six thousand, four hundred thirteen".