646550113041 has 80 divisors (see below), whose sum is σ = 1123257535488.
Its totient is φ = 362962684800.
The previous prime is 646550113019. The next prime is 646550113049. The reversal of 646550113041 is 140311055646.
646550113041 is a `hidden beast` number, since 64 + 6 + 550 + 1 + 1 + 3 + 0 + 41 = 666.
It is not a de Polignac number, because 646550113041 - 214 = 646550096657 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 646550112987 and 646550113005.
It is not an unprimeable number, because it can be changed into a prime (646550113049) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 29837751 + ... + 29859411.
Almost surely, 2646550113041 is an apocalyptic number.
646550113041 is a gapful number since it is divisible by the number (61) formed by its first and last digit.
It is an amenable number.
646550113041 is a deficient number, since it is larger than the sum of its proper divisors (476707422447).
646550113041 is a wasteful number, since it uses less digits than its factorization.
646550113041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22604 (or 22595 counting only the distinct ones).
The product of its (nonzero) digits is 43200, while the sum is 36.
Adding to 646550113041 its reverse (140311055646), we get a palindrome (786861168687).
The spelling of 646550113041 in words is "six hundred forty-six billion, five hundred fifty million, one hundred thirteen thousand, forty-one".