56440354155 has 8 divisors (see below), whose sum is σ = 90304566672. Its totient is φ = 30101522208.

The previous prime is 56440354151. The next prime is 56440354163. The reversal of 56440354155 is 55145304465.

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

It is not a de Polignac number, because 56440354155 - 2² = 56440354151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56440354151) 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, 1881345124 + ... + 1881345153.

It is an arithmetic number, because the mean of its divisors is an integer number (11288070834).

Almost surely, 2^56440354155 is an apocalyptic number.

56440354155 is a deficient number, since it is larger than the sum of its proper divisors (33864212517).

56440354155 is a wasteful number, since it uses less digits than its factorization.

56440354155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762690285.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 56440354155 in words is "fifty-six billion, four hundred forty million, three hundred fifty-four thousand, one hundred fifty-five".