64055566125655 has 12 divisors (see below), whose sum is σ = 83234333262600. Its totient is φ = 47302571907552.

The previous prime is 64055566125653. The next prime is 64055566125671. The reversal of 64055566125655 is 55652166555046.

It is not a de Polignac number, because 64055566125655 - 2¹ = 64055566125653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64055566125593 and 64055566125602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64055566125653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37902701005 + ... + 37902702694.

It is an arithmetic number, because the mean of its divisors is an integer number (6936194438550).

Almost surely, 2^{64055566125655} is an apocalyptic number.

64055566125655 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64055566125655 is a deficient number, since it is larger than the sum of its proper divisors (19178767136945).

64055566125655 is a wasteful number, since it uses less digits than its factorization.

64055566125655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75805403730 (or 75805403717 counting only the distinct ones).

The product of its (nonzero) digits is 162000000, while the sum is 61.

The spelling of 64055566125655 in words is "sixty-four trillion, fifty-five billion, five hundred sixty-six million, one hundred twenty-five thousand, six hundred fifty-five".