161035217545054 has 16 divisors (see below), whose sum is σ = 241578056412000. Its totient is φ = 80509199167584.

The previous prime is 161035217545031. The next prime is 161035217545057. The reversal of 161035217545054 is 450545712530161.

It is a junction number, because it is equal to n+sod(n) for n = 161035217544989 and 161035217545007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161035217545057) 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, 973828372 + ... + 973993720.

It is an arithmetic number, because the mean of its divisors is an integer number (15098628525750).

Almost surely, 2^{161035217545054} is an apocalyptic number.

161035217545054 is a deficient number, since it is larger than the sum of its proper divisors (80542838866946).

161035217545054 is a wasteful number, since it uses less digits than its factorization.

161035217545054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213267.

The product of its (nonzero) digits is 2520000, while the sum is 49.

The spelling of 161035217545054 in words is "one hundred sixty-one trillion, thirty-five billion, two hundred seventeen million, five hundred forty-five thousand, fifty-four".