82665624453842 has 16 divisors (see below), whose sum is σ = 126907872024960. Its totient is φ = 40366766705808.

The previous prime is 82665624453829. The next prime is 82665624453887. The reversal of 82665624453842 is 24835442656628.

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 7 ways as a sum of consecutive naturals, for example, 941520917 + ... + 941608712.

It is an arithmetic number, because the mean of its divisors is an integer number (7931742001560).

Almost surely, 2^{82665624453842} is an apocalyptic number.

82665624453842 is a deficient number, since it is larger than the sum of its proper divisors (44242247571118).

82665624453842 is a wasteful number, since it uses less digits than its factorization.

82665624453842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883130145.

The product of its digits is 530841600, while the sum is 65.

The spelling of 82665624453842 in words is "eighty-two trillion, six hundred sixty-five billion, six hundred twenty-four million, four hundred fifty-three thousand, eight hundred forty-two".