16557311110 has 16 divisors (see below), whose sum is σ = 30764552832. Its totient is φ = 6409281600.

The previous prime is 16557311083. The next prime is 16557311153. The reversal of 16557311110 is 1111375561.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26705031 + ... + 26705650.

It is an arithmetic number, because the mean of its divisors is an integer number (1922784552).

Almost surely, 2^16557311110 is an apocalyptic number.

16557311110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16557311110 is a deficient number, since it is larger than the sum of its proper divisors (14207241722).

16557311110 is a wasteful number, since it uses less digits than its factorization.

16557311110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53410719.

The product of its (nonzero) digits is 3150, while the sum is 31.

Adding to 16557311110 its reverse (1111375561), we get a palindrome (17668686671).

The spelling of 16557311110 in words is "sixteen billion, five hundred fifty-seven million, three hundred eleven thousand, one hundred ten".