161611100500606 has 16 divisors (see below), whose sum is σ = 242894543505408. Its totient is φ = 80646351521400.

The previous prime is 161611100500579. The next prime is 161611100500621. The reversal of 161611100500606 is 606005001116161.

161611100500606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161611100500606² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21442530 + ... + 27982213.

It is an arithmetic number, because the mean of its divisors is an integer number (15180908969088).

Almost surely, 2^{161611100500606} is an apocalyptic number.

161611100500606 is a deficient number, since it is larger than the sum of its proper divisors (81283443004802).

161611100500606 is a wasteful number, since it uses less digits than its factorization.

161611100500606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49427967.

The product of its (nonzero) digits is 6480, while the sum is 34.

Adding to 161611100500606 its reverse (606005001116161), we get a palindrome (767616101616767).

The spelling of 161611100500606 in words is "one hundred sixty-one trillion, six hundred eleven billion, one hundred million, five hundred thousand, six hundred six".