161459041023 has 24 divisors (see below), whose sum is σ = 268894293408. Its totient is φ = 91445824512.

The previous prime is 161459041013. The next prime is 161459041027. The reversal of 161459041023 is 320140954161.

It is a happy number.

161459041023 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 590 + 41 + 0 + 23 = 666.

It is not a de Polignac number, because 161459041023 - 2⁸ = 161459040767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161459041027) 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, 11332890 + ... + 11347127.

It is an arithmetic number, because the mean of its divisors is an integer number (11203928892).

Almost surely, 2^161459041023 is an apocalyptic number.

161459041023 is a deficient number, since it is larger than the sum of its proper divisors (107435252385).

161459041023 is a wasteful number, since it uses less digits than its factorization.

161459041023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22680143 (or 22680140 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 161459041023 its reverse (320140954161), we get a palindrome (481599995184).

The spelling of 161459041023 in words is "one hundred sixty-one billion, four hundred fifty-nine million, forty-one thousand, twenty-three".