161696248 has 64 divisors (see below), whose sum is σ = 378777600. Its totient is φ = 63106560.

The previous prime is 161696243. The next prime is 161696287. The reversal of 161696248 is 842696161.

161696248 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161696248² = 52291353234555008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161696243) 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, 26773 + ... + 32251.

It is an arithmetic number, because the mean of its divisors is an integer number (5918400).

Almost surely, 2^161696248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161696248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189388800).

161696248 is an abundant number, since it is smaller than the sum of its proper divisors (217081352).

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

161696248 is a wasteful number, since it uses less digits than its factorization.

161696248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540 (or 5536 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 161696248 is about 12715.9839572091. The cubic root of 161696248 is about 544.7952523264.

The spelling of 161696248 in words is "one hundred sixty-one million, six hundred ninety-six thousand, two hundred forty-eight".