161027826 has 16 divisors (see below), whose sum is σ = 332444928. Its totient is φ = 51944400.

The previous prime is 161027809. The next prime is 161027827. The reversal of 161027826 is 628720161.

161027826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161027827) 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, 432685 + ... + 433056.

It is an arithmetic number, because the mean of its divisors is an integer number (20777808).

Almost surely, 2^161027826 is an apocalyptic number.

161027826 is an abundant number, since it is smaller than the sum of its proper divisors (171417102).

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

161027826 is a wasteful number, since it uses less digits than its factorization.

161027826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865777.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 161027826 is about 12689.6739910842. The cubic root of 161027826 is about 544.0435216947.

Adding to 161027826 its reverse (628720161), we get a palindrome (789747987).

The spelling of 161027826 in words is "one hundred sixty-one million, twenty-seven thousand, eight hundred twenty-six".