264043178655 has 32 divisors (see below), whose sum is σ = 443559974400. Its totient is φ = 133937688192.

The previous prime is 264043178653. The next prime is 264043178723. The reversal of 264043178655 is 556871340462.

It is not a de Polignac number, because 264043178655 - 2¹ = 264043178653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264043178598 and 264043178607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264043178653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4500675 + ... + 4558964.

It is an arithmetic number, because the mean of its divisors is an integer number (13861249200).

Almost surely, 2^264043178655 is an apocalyptic number.

264043178655 is a deficient number, since it is larger than the sum of its proper divisors (179516795745).

264043178655 is a wasteful number, since it uses less digits than its factorization.

264043178655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059743.

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 264043178655 in words is "two hundred sixty-four billion, forty-three million, one hundred seventy-eight thousand, six hundred fifty-five".