8161825481152 has 56 divisors (see below), whose sum is σ = 18525909034976. Its totient is φ = 3494891225088.

The previous prime is 8161825481119. The next prime is 8161825481209. The reversal of 8161825481152 is 2511845281618.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 8161825481152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7383873 + ... + 8416960.

It is an arithmetic number, because the mean of its divisors is an integer number (330819804196).

Almost surely, 2^{8161825481152} is an apocalyptic number.

It is an amenable number.

8161825481152 is an abundant number, since it is smaller than the sum of its proper divisors (10364083553824).

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

8161825481152 is a wasteful number, since it uses less digits than its factorization.

8161825481152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15802005 (or 15801995 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 52.

The spelling of 8161825481152 in words is "eight trillion, one hundred sixty-one billion, eight hundred twenty-five million, four hundred eighty-one thousand, one hundred fifty-two".