161551106101175 has 12 divisors (see below), whose sum is σ = 228940996075056. Its totient is φ = 110777901326400.

The previous prime is 161551106101109. The next prime is 161551106101213. The reversal of 161551106101175 is 571101601155161.

It is a happy number.

It is not a de Polignac number, because 161551106101175 - 2⁸ = 161551106100919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461574588686 + ... + 461574589035.

It is an arithmetic number, because the mean of its divisors is an integer number (19078416339588).

Almost surely, 2^{161551106101175} is an apocalyptic number.

161551106101175 is a deficient number, since it is larger than the sum of its proper divisors (67389889973881).

161551106101175 is an equidigital number, since it uses as much as digits as its factorization.

161551106101175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923149177738 (or 923149177733 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 41.

The spelling of 161551106101175 in words is "one hundred sixty-one trillion, five hundred fifty-one billion, one hundred six million, one hundred one thousand, one hundred seventy-five".