8161447269360 has 1280 divisors, whose sum is σ = 33308770959360. Its totient is φ = 1603749888000.

The previous prime is 8161447269331. The next prime is 8161447269383. The reversal of 8161447269360 is 639627441618.

It is a self number, because there is not a number n which added to its sum of digits gives 8161447269360.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 11811066615 + ... + 11811067305.

It is an arithmetic number, because the mean of its divisors is an integer number (26022477312).

Almost surely, 2^{8161447269360} is an apocalyptic number.

8161447269360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8161447269360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16654385479680).

8161447269360 is an abundant number, since it is smaller than the sum of its proper divisors (25147323690000).

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

8161447269360 is a wasteful number, since it uses less digits than its factorization.

8161447269360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 8161447269360 in words is "eight trillion, one hundred sixty-one billion, four hundred forty-seven million, two hundred sixty-nine thousand, three hundred sixty".