82765228644155 has 16 divisors (see below), whose sum is σ = 100077981300000. Its totient is φ = 65705727310080.

The previous prime is 82765228644143. The next prime is 82765228644173. The reversal of 82765228644155 is 55144682256728.

It is not a de Polignac number, because 82765228644155 - 2¹⁰ = 82765228643131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82765228644091 and 82765228644100.

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, 42774071 + ... + 44667119.

It is an arithmetic number, because the mean of its divisors is an integer number (6254873831250).

Almost surely, 2^{82765228644155} is an apocalyptic number.

82765228644155 is a deficient number, since it is larger than the sum of its proper divisors (17312752655845).

82765228644155 is a wasteful number, since it uses less digits than its factorization.

82765228644155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959934.

The product of its digits is 258048000, while the sum is 65.

The spelling of 82765228644155 in words is "eighty-two trillion, seven hundred sixty-five billion, two hundred twenty-eight million, six hundred forty-four thousand, one hundred fifty-five".