6646001103 has 32 divisors (see below), whose sum is σ = 11406656000. Its totient is φ = 3745683648.

The previous prime is 6646001101. The next prime is 6646001107. The reversal of 6646001103 is 3011006466.

6646001103 is a `hidden beast` number, since 6 + 646 + 0 + 0 + 1 + 10 + 3 = 666.

It is not a de Polignac number, because 6646001103 - 2¹ = 6646001101 is a prime.

It is a super-2 number, since 2×6646001103² = 88338661322154433218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646001101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227053 + ... + 254646.

It is an arithmetic number, because the mean of its divisors is an integer number (356458000).

Almost surely, 2^6646001103 is an apocalyptic number.

6646001103 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6646001103 is a deficient number, since it is larger than the sum of its proper divisors (4760654897).

6646001103 is a wasteful number, since it uses less digits than its factorization.

6646001103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481788 (or 481782 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 6646001103 is about 81523.0096537168. The cubic root of 6646001103 is about 1880.1253408774.

Adding to 6646001103 its reverse (3011006466), we get a palindrome (9657007569).

The spelling of 6646001103 in words is "six billion, six hundred forty-six million, one thousand, one hundred three".