161852355 has 48 divisors (see below), whose sum is σ = 337509120. Its totient is φ = 70092864.

The previous prime is 161852323. The next prime is 161852363. The reversal of 161852355 is 553258161.

It is a happy number.

161852355 is a `hidden beast` number, since 1 + 618 + 5 + 2 + 35 + 5 = 666.

It is not a de Polignac number, because 161852355 - 2⁵ = 161852323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7537 + ... + 19506.

It is an arithmetic number, because the mean of its divisors is an integer number (7031440).

Almost surely, 2^161852355 is an apocalyptic number.

161852355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161852355 is an abundant number, since it is smaller than the sum of its proper divisors (175656765).

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

161852355 is a wasteful number, since it uses less digits than its factorization.

161852355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27080 (or 27077 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 161852355 is about 12722.1206958588. The cubic root of 161852355 is about 544.9705171605.

The spelling of 161852355 in words is "one hundred sixty-one million, eight hundred fifty-two thousand, three hundred fifty-five".