111601061005 has 32 divisors (see below), whose sum is σ = 155045721600. Its totient is φ = 75535379712.

The previous prime is 111601061003. The next prime is 111601061057. The reversal of 111601061005 is 500160106111.

It is a cyclic number.

It is not a de Polignac number, because 111601061005 - 2¹ = 111601061003 is a prime.

It is a super-2 number, since 2×111601061005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111601061003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 947731 + ... + 1058959.

It is an arithmetic number, because the mean of its divisors is an integer number (4845178800).

Almost surely, 2^111601061005 is an apocalyptic number.

It is an amenable number.

111601061005 is a deficient number, since it is larger than the sum of its proper divisors (43444660595).

111601061005 is a wasteful number, since it uses less digits than its factorization.

111601061005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111613.

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 111601061005 its reverse (500160106111), we get a palindrome (611761167116).

The spelling of 111601061005 in words is "one hundred eleven billion, six hundred one million, sixty-one thousand, five".