56156134463566 has 4 divisors (see below), whose sum is σ = 84234201695352. Its totient is φ = 28078067231782.

The previous prime is 56156134463557. The next prime is 56156134463603. The reversal of 56156134463566 is 66536443165165.

56156134463566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×56156134463566² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14039033615890 + ... + 14039033615893.

It is an arithmetic number, because the mean of its divisors is an integer number (21058550423838).

Almost surely, 2^{56156134463566} is an apocalyptic number.

56156134463566 is a deficient number, since it is larger than the sum of its proper divisors (28078067231786).

56156134463566 is a wasteful number, since it uses less digits than its factorization.

56156134463566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28078067231785.

The product of its digits is 139968000, while the sum is 61.

The spelling of 56156134463566 in words is "fifty-six trillion, one hundred fifty-six billion, one hundred thirty-four million, four hundred sixty-three thousand, five hundred sixty-six".