82665387048025 has 12 divisors (see below), whose sum is σ = 104439138053292. Its totient is φ = 64884530210240.

The previous prime is 82665387047987. The next prime is 82665387048037. The reversal of 82665387048025 is 52084078356628.

It can be written as a sum of positive squares in 6 ways, for example, as 17706028096 + 82647681019929 = 133064^2 + 9091077^2 .

It is not a de Polignac number, because 82665387048025 - 2⁹ = 82665387047513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31194484354 + ... + 31194487003.

It is an arithmetic number, because the mean of its divisors is an integer number (8703261504441).

Almost surely, 2^{82665387048025} is an apocalyptic number.

It is an amenable number.

82665387048025 is a deficient number, since it is larger than the sum of its proper divisors (21773751005267).

82665387048025 is a wasteful number, since it uses less digits than its factorization.

82665387048025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62388971420 (or 62388971415 counting only the distinct ones).

The product of its (nonzero) digits is 154828800, while the sum is 64.

The spelling of 82665387048025 in words is "eighty-two trillion, six hundred sixty-five billion, three hundred eighty-seven million, forty-eight thousand, twenty-five".