646135134116 has 24 divisors (see below), whose sum is σ = 1149357155520. Its totient is φ = 317781371232.

The previous prime is 646135134097. The next prime is 646135134119. The reversal of 646135134116 is 611431531646.

It is a super-2 number, since 2×646135134116² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (646135134119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4173296 + ... + 4325351.

It is an arithmetic number, because the mean of its divisors is an integer number (47889881480).

Almost surely, 2^646135134116 is an apocalyptic number.

It is an amenable number.

646135134116 is a deficient number, since it is larger than the sum of its proper divisors (503222021404).

646135134116 is a wasteful number, since it uses less digits than its factorization.

646135134116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498963 (or 8498961 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The spelling of 646135134116 in words is "six hundred forty-six billion, one hundred thirty-five million, one hundred thirty-four thousand, one hundred sixteen".