646105113063 has 6 divisors (see below), whose sum is σ = 933262941104. Its totient is φ = 430736742036.

The previous prime is 646105113047. The next prime is 646105113067. The reversal of 646105113063 is 360311501646.

646105113063 is a `hidden beast` number, since 6 + 4 + 610 + 5 + 1 + 1 + 30 + 6 + 3 = 666.

It is not a de Polignac number, because 646105113063 - 2⁴ = 646105113047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646105113067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35894728495 + ... + 35894728512.

Almost surely, 2^646105113063 is an apocalyptic number.

646105113063 is a deficient number, since it is larger than the sum of its proper divisors (287157828041).

646105113063 is a wasteful number, since it uses less digits than its factorization.

646105113063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71789457013 (or 71789457010 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 646105113063 in words is "six hundred forty-six billion, one hundred five million, one hundred thirteen thousand, sixty-three".