8155122073715 has 16 divisors (see below), whose sum is σ = 10050740897760. Its totient is φ = 6347705034240.

The previous prime is 8155122073649. The next prime is 8155122073723. The reversal of 8155122073715 is 5173702215518.

It is not a de Polignac number, because 8155122073715 - 2³⁸ = 7880244166771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8155122073715.

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, 25578956 + ... + 25895814.

It is an arithmetic number, because the mean of its divisors is an integer number (628171306110).

Almost surely, 2^{8155122073715} is an apocalyptic number.

8155122073715 is a deficient number, since it is larger than the sum of its proper divisors (1895618824045).

8155122073715 is a wasteful number, since it uses less digits than its factorization.

8155122073715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456022.

The product of its (nonzero) digits is 588000, while the sum is 47.

The spelling of 8155122073715 in words is "eight trillion, one hundred fifty-five billion, one hundred twenty-two million, seventy-three thousand, seven hundred fifteen".