8161763468160 has 128 divisors (see below), whose sum is σ = 26220469248000. Its totient is φ = 2159332632576.

The previous prime is 8161763468153. The next prime is 8161763468171. The reversal of 8161763468160 is 618643671618.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×8161763468160² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8161763468160.

It is a congruent number.

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, 16492060 + ... + 16979739.

It is an arithmetic number, because the mean of its divisors is an integer number (204847416000).

Almost surely, 2^{8161763468160} is an apocalyptic number.

8161763468160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8161763468160 is an abundant number, since it is smaller than the sum of its proper divisors (18058705779840).

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

8161763468160 is a wasteful number, since it uses less digits than its factorization.

8161763468160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33471948 (or 33471936 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 8161763468160 in words is "eight trillion, one hundred sixty-one billion, seven hundred sixty-three million, four hundred sixty-eight thousand, one hundred sixty".