161053344 has 36 divisors (see below), whose sum is σ = 457996266. Its totient is φ = 53684352.

The previous prime is 161053331. The next prime is 161053357. The reversal of 161053344 is 443350161.

161053344 is a `hidden beast` number, since 1 + 610 + 5 + 3 + 3 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (161053331) and next prime (161053357).

It can be written as a sum of positive squares in only one way, i.e., 100400400 + 60652944 = 10020^2 + 7788^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×161053344² = 51876359227164672, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 279319 + ... + 279894.

Almost surely, 2^161053344 is an apocalyptic number.

It is an amenable number.

161053344 is an abundant number, since it is smaller than the sum of its proper divisors (296942922).

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

161053344 is a wasteful number, since it uses less digits than its factorization.

161053344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559229 (or 559218 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 161053344 is about 12690.6794144364. The cubic root of 161053344 is about 544.0722582794.

The spelling of 161053344 in words is "one hundred sixty-one million, fifty-three thousand, three hundred forty-four".