161611100151117 has 8 divisors (see below), whose sum is σ = 215481558652800. Its totient is φ = 107740687541760.

The previous prime is 161611100151103. The next prime is 161611100151121. The reversal of 161611100151117 is 711151001116161.

161611100151117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161611100151117 - 2⁷ = 161611100150989 is a prime.

It is a super-2 number, since 2×161611100151117² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161611100151167) 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, 2181109 + ... + 18110202.

It is an arithmetic number, because the mean of its divisors is an integer number (26935194831600).

Almost surely, 2^{161611100151117} is an apocalyptic number.

It is an amenable number.

161611100151117 is a deficient number, since it is larger than the sum of its proper divisors (53870458501683).

161611100151117 is a wasteful number, since it uses less digits than its factorization.

161611100151117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22946163.

The product of its (nonzero) digits is 1260, while the sum is 33.

Adding to 161611100151117 its reverse (711151001116161), we get a palindrome (872762101267278).

The spelling of 161611100151117 in words is "one hundred sixty-one trillion, six hundred eleven billion, one hundred million, one hundred fifty-one thousand, one hundred seventeen".