111206052644 has 12 divisors (see below), whose sum is σ = 196031108364. Its totient is φ = 55197164544.

The previous prime is 111206052631. The next prime is 111206052649. The reversal of 111206052644 is 446250602111.

It can be written as a sum of positive squares in 2 ways, for example, as 37636000000 + 73570052644 = 194000^2 + 271238^2 .

It is a super-2 number, since 2×111206052644² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111206052644.

It is not an unprimeable number, because it can be changed into a prime (111206052649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101464829 + ... + 101465924.

It is an arithmetic number, because the mean of its divisors is an integer number (16335925697).

Almost surely, 2^111206052644 is an apocalyptic number.

It is an amenable number.

111206052644 is a deficient number, since it is larger than the sum of its proper divisors (84825055720).

111206052644 is a wasteful number, since it uses less digits than its factorization.

111206052644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202930894 (or 202930892 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 111206052644 its reverse (446250602111), we get a palindrome (557456654755).

The spelling of 111206052644 in words is "one hundred eleven billion, two hundred six million, fifty-two thousand, six hundred forty-four".