8166161850532 has 96 divisors (see below), whose sum is σ = 17539443081216. Its totient is φ = 3246996748800.

The previous prime is 8166161850433. The next prime is 8166161850541. The reversal of 8166161850532 is 2350581616618.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8166161850532.

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, 261126057 + ... + 261157327.

It is an arithmetic number, because the mean of its divisors is an integer number (182702532096).

Almost surely, 2^{8166161850532} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8166161850532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8769721540608).

8166161850532 is an abundant number, since it is smaller than the sum of its proper divisors (9373281230684).

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

8166161850532 is a wasteful number, since it uses less digits than its factorization.

8166161850532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39097 (or 39095 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 8166161850532 in words is "eight trillion, one hundred sixty-six billion, one hundred sixty-one million, eight hundred fifty thousand, five hundred thirty-two".