161648033123 has 16 divisors (see below), whose sum is σ = 170655636480. Its totient is φ = 152690940864.

The previous prime is 161648033101. The next prime is 161648033143. The reversal of 161648033123 is 321330846161.

It is a cyclic number.

It is not a de Polignac number, because 161648033123 - 2¹⁰ = 161648032099 is a prime.

It is a super-2 number, since 2×161648033123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161648033143) 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, 12599690 + ... + 12612512.

It is an arithmetic number, because the mean of its divisors is an integer number (10665977280).

Almost surely, 2^161648033123 is an apocalyptic number.

161648033123 is a deficient number, since it is larger than the sum of its proper divisors (9007603357).

161648033123 is a wasteful number, since it uses less digits than its factorization.

161648033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14738.

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 161648033123 its reverse (321330846161), we get a palindrome (482978879284).

The spelling of 161648033123 in words is "one hundred sixty-one billion, six hundred forty-eight million, thirty-three thousand, one hundred twenty-three".