111010061601 has 32 divisors (see below), whose sum is σ = 165748377600. Its totient is φ = 73428658560.

The previous prime is 111010061593. The next prime is 111010061609. The reversal of 111010061601 is 106160010111.

111010061601 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 1 + 0 + 0 + 61 + 601 = 666.

It is an interprime number because it is at equal distance from previous prime (111010061593) and next prime (111010061609).

It is not a de Polignac number, because 111010061601 - 2³ = 111010061593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111010061609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1978405 + ... + 2033741.

It is an arithmetic number, because the mean of its divisors is an integer number (5179636800).

Almost surely, 2^111010061601 is an apocalyptic number.

It is an amenable number.

111010061601 is a deficient number, since it is larger than the sum of its proper divisors (54738315999).

111010061601 is a wasteful number, since it uses less digits than its factorization.

111010061601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55926 (or 55920 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 111010061601 its reverse (106160010111), we get a palindrome (217170071712).

The spelling of 111010061601 in words is "one hundred eleven billion, ten million, sixty-one thousand, six hundred one".