1616243500111 has 4 divisors (see below), whose sum is σ = 1643637457800. Its totient is φ = 1588849542424.

The previous prime is 1616243500057. The next prime is 1616243500199. The reversal of 1616243500111 is 1110053426161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1616243500111 - 2⁹ = 1616243499599 is a prime.

It is a super-2 number, since 2×1616243500111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616243560111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13696978756 + ... + 13696978873.

It is an arithmetic number, because the mean of its divisors is an integer number (410909364450).

Almost surely, 2^{1616243500111} is an apocalyptic number.

1616243500111 is a deficient number, since it is larger than the sum of its proper divisors (27393957689).

1616243500111 is an equidigital number, since it uses as much as digits as its factorization.

1616243500111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27393957688.

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 1616243500111 its reverse (1110053426161), we get a palindrome (2726296926272).

The spelling of 1616243500111 in words is "one trillion, six hundred sixteen billion, two hundred forty-three million, five hundred thousand, one hundred eleven".