66954087255 has 32 divisors (see below), whose sum is σ = 118022427648. Its totient is φ = 32141168000.

The previous prime is 66954087253. The next prime is 66954087287. The reversal of 66954087255 is 55278045966.

It is not a de Polignac number, because 66954087255 - 2¹ = 66954087253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66954087195 and 66954087204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66954087253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1992159 + ... + 2025488.

It is an arithmetic number, because the mean of its divisors is an integer number (3688200864).

Almost surely, 2^66954087255 is an apocalyptic number.

66954087255 is a deficient number, since it is larger than the sum of its proper divisors (51068340393).

66954087255 is a wasteful number, since it uses less digits than its factorization.

66954087255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017767.

The product of its (nonzero) digits is 18144000, while the sum is 57.

The spelling of 66954087255 in words is "sixty-six billion, nine hundred fifty-four million, eighty-seven thousand, two hundred fifty-five".