161498448 has 100 divisors (see below), whose sum is σ = 483653940. Its totient is φ = 51964416.

The previous prime is 161498443. The next prime is 161498489. The reversal of 161498448 is 844894161.

161498448 is a `hidden beast` number, since 161 + 49 + 8 + 448 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 85599504 + 75898944 = 9252^2 + 8712^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161498443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35436 + ... + 39732.

Almost surely, 2^161498448 is an apocalyptic number.

161498448 is a gapful number since it is divisible by the number (18) 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 161498448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241826970).

161498448 is an abundant number, since it is smaller than the sum of its proper divisors (322155492).

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

161498448 is a wasteful number, since it uses less digits than its factorization.

161498448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346 (or 4331 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 161498448 is about 12708.2039643688. The cubic root of 161498448 is about 544.5730157303.

The spelling of 161498448 in words is "one hundred sixty-one million, four hundred ninety-eight thousand, four hundred forty-eight".