161162167848 has 384 divisors, whose sum is σ = 481825843200. Its totient is φ = 44455488000.

The previous prime is 161162167847. The next prime is 161162167849. The reversal of 161162167848 is 848761261161.

It is an interprime number because it is at equal distance from previous prime (161162167847) and next prime (161162167849).

It is a super-2 number, since 2×161162167848² (a number of 23 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 161162167848.

It is not an unprimeable number, because it can be changed into a prime (161162167841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 414298438 + ... + 414298826.

It is an arithmetic number, because the mean of its divisors is an integer number (1254754800).

Almost surely, 2^161162167848 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 161162167848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240912921600).

161162167848 is an abundant number, since it is smaller than the sum of its proper divisors (320663675352).

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

161162167848 is a wasteful number, since it uses less digits than its factorization.

161162167848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 530 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The spelling of 161162167848 in words is "one hundred sixty-one billion, one hundred sixty-two million, one hundred sixty-seven thousand, eight hundred forty-eight".