163521123414 has 32 divisors (see below), whose sum is σ = 366415888896. Its totient is φ = 48212615520.

The previous prime is 163521123413. The next prime is 163521123463. The reversal of 163521123414 is 414321125361.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163521123413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33478542 + ... + 33483425.

It is an arithmetic number, because the mean of its divisors is an integer number (11450496528).

Almost surely, 2^163521123414 is an apocalyptic number.

163521123414 is an abundant number, since it is smaller than the sum of its proper divisors (202894765482).

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

163521123414 is a wasteful number, since it uses less digits than its factorization.

163521123414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66962020.

The product of its digits is 17280, while the sum is 33.

Adding to 163521123414 its reverse (414321125361), we get a palindrome (577842248775).

The spelling of 163521123414 in words is "one hundred sixty-three billion, five hundred twenty-one million, one hundred twenty-three thousand, four hundred fourteen".