161392576 has 56 divisors (see below), whose sum is σ = 328086720. Its totient is φ = 78753792.

The previous prime is 161392571. The next prime is 161392591. The reversal of 161392576 is 675293161.

161392576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161392571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692556 + ... + 692788.

Almost surely, 2^161392576 is an apocalyptic number.

161392576 is a gapful number since it is divisible by the number (16) 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 161392576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164043360).

161392576 is an abundant number, since it is smaller than the sum of its proper divisors (166694144).

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

161392576 is a wasteful number, since it uses less digits than its factorization.

161392576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 451 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 161392576 is about 12704.0377833191. The cubic root of 161392576 is about 544.4539895345.

The spelling of 161392576 in words is "one hundred sixty-one million, three hundred ninety-two thousand, five hundred seventy-six".