64540426352055 has 32 divisors (see below), whose sum is σ = 110750602544640. Its totient is φ = 31994618497920.

The previous prime is 64540426352033. The next prime is 64540426352099. The reversal of 64540426352055 is 55025362404546.

It is not a de Polignac number, because 64540426352055 - 2⁷ = 64540426351927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64540426351989 and 64540426352007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2136377691 + ... + 2136407900.

It is an arithmetic number, because the mean of its divisors is an integer number (3460956329520).

Almost surely, 2^{64540426352055} is an apocalyptic number.

64540426352055 is a deficient number, since it is larger than the sum of its proper divisors (46210176192585).

64540426352055 is a wasteful number, since it uses less digits than its factorization.

64540426352055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272785671.

The product of its (nonzero) digits is 17280000, while the sum is 51.

The spelling of 64540426352055 in words is "sixty-four trillion, five hundred forty billion, four hundred twenty-six million, three hundred fifty-two thousand, fifty-five".