56271656121 has 8 divisors (see below), whose sum is σ = 75299738304. Its totient is φ = 37379005680.

The previous prime is 56271656087. The next prime is 56271656131. The reversal of 56271656121 is 12165617265.

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

It is not a de Polignac number, because 56271656121 - 2¹⁴ = 56271639737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56271656131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33856965 + ... + 33858626.

It is an arithmetic number, because the mean of its divisors is an integer number (9412467288).

Almost surely, 2^56271656121 is an apocalyptic number.

It is an amenable number.

56271656121 is a deficient number, since it is larger than the sum of its proper divisors (19028082183).

56271656121 is a wasteful number, since it uses less digits than its factorization.

56271656121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67715871.

The product of its digits is 151200, while the sum is 42.

The spelling of 56271656121 in words is "fifty-six billion, two hundred seventy-one million, six hundred fifty-six thousand, one hundred twenty-one".