28601656055 has 16 divisors (see below), whose sum is σ = 39291303744. Its totient is φ = 19579476480.

The previous prime is 28601656051. The next prime is 28601656133. The reversal of 28601656055 is 55065610682.

It is not a de Polignac number, because 28601656055 - 2² = 28601656051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28601655997 and 28601656015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28601656051) 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 15 ways as a sum of consecutive naturals, for example, 668276 + ... + 709785.

It is an arithmetic number, because the mean of its divisors is an integer number (2455706484).

Almost surely, 2^28601656055 is an apocalyptic number.

28601656055 is a deficient number, since it is larger than the sum of its proper divisors (10689647689).

28601656055 is a wasteful number, since it uses less digits than its factorization.

28601656055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378666.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 28601656055 in words is "twenty-eight billion, six hundred one million, six hundred fifty-six thousand, fifty-five".