646135071046 has 8 divisors (see below), whose sum is σ = 969206157504. Its totient is φ = 323066351880.

The previous prime is 646135071013. The next prime is 646135071053. The reversal of 646135071046 is 640170531646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 646135070993 and 646135071011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475531 + ... + 1232233.

It is an arithmetic number, because the mean of its divisors is an integer number (121150769688).

Almost surely, 2^646135071046 is an apocalyptic number.

646135071046 is a deficient number, since it is larger than the sum of its proper divisors (323071086458).

646135071046 is a wasteful number, since it uses less digits than its factorization.

646135071046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183646.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 646135071046 in words is "six hundred forty-six billion, one hundred thirty-five million, seventy-one thousand, forty-six".