8155122074028 has 36 divisors (see below), whose sum is σ = 20614429341688. Its totient is φ = 2718361762560.

The previous prime is 8155122074027. The next prime is 8155122074069. The reversal of 8155122074028 is 8204702215518.

8155122074028 is a `hidden beast` number, since 8 + 1 + 551 + 2 + 2 + 0 + 74 + 0 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (8155122074023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11357163 + ... + 12053853.

Almost surely, 2^{8155122074028} is an apocalyptic number.

It is an amenable number.

8155122074028 is an abundant number, since it is smaller than the sum of its proper divisors (12459307267660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8155122074028 is a wasteful number, since it uses less digits than its factorization.

8155122074028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021854 (or 1021849 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 8155122074028 in words is "eight trillion, one hundred fifty-five billion, one hundred twenty-two million, seventy-four thousand, twenty-eight".