216546342103 has 16 divisors (see below), whose sum is σ = 267502068736. Its totient is φ = 170701123680.

The previous prime is 216546342097. The next prime is 216546342121. The reversal of 216546342103 is 301243645612.

It is a cyclic number.

It is not a de Polignac number, because 216546342103 - 2⁹ = 216546341591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216546322103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4365801 + ... + 4415122.

It is an arithmetic number, because the mean of its divisors is an integer number (16718879296).

Almost surely, 2^216546342103 is an apocalyptic number.

216546342103 is a deficient number, since it is larger than the sum of its proper divisors (50955726633).

216546342103 is a wasteful number, since it uses less digits than its factorization.

216546342103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8781214.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 216546342103 its reverse (301243645612), we get a palindrome (517789987715).

The spelling of 216546342103 in words is "two hundred sixteen billion, five hundred forty-six million, three hundred forty-two thousand, one hundred three".