82667728245655 has 16 divisors (see below), whose sum is σ = 113377157660160. Its totient is φ = 56684305621152.

The previous prime is 82667728245631. The next prime is 82667728245709. The reversal of 82667728245655 is 55654282776628.

It is a cyclic number.

It is not a de Polignac number, because 82667728245655 - 2¹³ = 82667728237463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43570459 + ... + 45428188.

It is an arithmetic number, because the mean of its divisors is an integer number (7086072353760).

Almost surely, 2^{82667728245655} is an apocalyptic number.

82667728245655 is a deficient number, since it is larger than the sum of its proper divisors (30709429414505).

82667728245655 is a wasteful number, since it uses less digits than its factorization.

82667728245655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89025198.

The product of its digits is 2709504000, while the sum is 73.

The spelling of 82667728245655 in words is "eighty-two trillion, six hundred sixty-seven billion, seven hundred twenty-eight million, two hundred forty-five thousand, six hundred fifty-five".