161161041030 has 48 divisors (see below), whose sum is σ = 425145499632. Its totient is φ = 39069342400.

The previous prime is 161161041023. The next prime is 161161041053. The reversal of 161161041030 is 30140161161.

It is a super-2 number, since 2×161161041030² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22194861 + ... + 22202120.

It is an arithmetic number, because the mean of its divisors is an integer number (8857197909).

Almost surely, 2^161161041030 is an apocalyptic number.

161161041030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161161041030 is an abundant number, since it is smaller than the sum of its proper divisors (263984458602).

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

161161041030 is a wasteful number, since it uses less digits than its factorization.

161161041030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44397013 (or 44397002 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 161161041030 in words is "one hundred sixty-one billion, one hundred sixty-one million, forty-one thousand, thirty".