161052816 has 80 divisors (see below), whose sum is σ = 441489600. Its totient is φ = 50448384.

The previous prime is 161052811. The next prime is 161052851. The reversal of 161052816 is 618250161.

It is not an unprimeable number, because it can be changed into a prime (161052811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124300 + ... + 125588.

It is an arithmetic number, because the mean of its divisors is an integer number (5518620).

Almost surely, 2^161052816 is an apocalyptic number.

161052816 is a gapful number since it is divisible by the number (16) 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 161052816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220744800).

161052816 is an abundant number, since it is smaller than the sum of its proper divisors (280436784).

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

161052816 is a wasteful number, since it uses less digits than its factorization.

161052816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 161052816 is about 12690.6586117506. The cubic root of 161052816 is about 544.0716637135.

The spelling of 161052816 in words is "one hundred sixty-one million, fifty-two thousand, eight hundred sixteen".