161548488 has 96 divisors (see below), whose sum is σ = 463320000. Its totient is φ = 50709888.

The previous prime is 161548483. The next prime is 161548523. The reversal of 161548488 is 884845161.

161548488 is a `hidden beast` number, since 1 + 61 + 548 + 48 + 8 = 666.

It is a super-2 number, since 2×161548488² = 52195827950172288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161548483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367773 + ... + 368211.

It is an arithmetic number, because the mean of its divisors is an integer number (4826250).

Almost surely, 2^161548488 is an apocalyptic number.

161548488 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 161548488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231660000).

161548488 is an abundant number, since it is smaller than the sum of its proper divisors (301771512).

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

161548488 is a wasteful number, since it uses less digits than its factorization.

161548488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 732 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 161548488 is about 12710.1726188121. The cubic root of 161548488 is about 544.6292549079.

It can be divided in two parts, 16154 and 8488, that added together give a palindrome (24642).

The spelling of 161548488 in words is "one hundred sixty-one million, five hundred forty-eight thousand, four hundred eighty-eight".