8256121354152 has 128 divisors (see below), whose sum is σ = 26211548851200. Its totient is φ = 2358744235200.

The previous prime is 8256121354147. The next prime is 8256121354199. The reversal of 8256121354152 is 2514531216528.

8256121354152 is a `hidden beast` number, since 8 + 2 + 5 + 612 + 13 + 5 + 4 + 15 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 8256121354098 and 8256121354107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25255827 + ... + 25580637.

It is an arithmetic number, because the mean of its divisors is an integer number (204777725400).

Almost surely, 2^{8256121354152} is an apocalyptic number.

It is an amenable number.

8256121354152 is an abundant number, since it is smaller than the sum of its proper divisors (17955427497048).

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

8256121354152 is a wasteful number, since it uses less digits than its factorization.

8256121354152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341644 (or 341634 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The spelling of 8256121354152 in words is "eight trillion, two hundred fifty-six billion, one hundred twenty-one million, three hundred fifty-four thousand, one hundred fifty-two".