6553516123 has 16 divisors (see below), whose sum is σ = 8337369600. Its totient is φ = 5106633000.

The previous prime is 6553516121. The next prime is 6553516127. The reversal of 6553516123 is 3216153556.

It is not a de Polignac number, because 6553516123 - 2¹ = 6553516121 is a prime.

It is a super-2 number, since 2×6553516123² = 85897147148841902258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6553516121) 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, 864703 + ... + 872248.

It is an arithmetic number, because the mean of its divisors is an integer number (521085600).

Almost surely, 2^6553516123 is an apocalyptic number.

6553516123 is a deficient number, since it is larger than the sum of its proper divisors (1783853477).

6553516123 is a wasteful number, since it uses less digits than its factorization.

6553516123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736983 (or 1736969 counting only the distinct ones).

The product of its digits is 81000, while the sum is 37.

The square root of 6553516123 is about 80953.7900471621. The cubic root of 6553516123 is about 1871.3633687687.

Adding to 6553516123 its reverse (3216153556), we get a palindrome (9769669679).

The spelling of 6553516123 in words is "six billion, five hundred fifty-three million, five hundred sixteen thousand, one hundred twenty-three".