646064143014 has 32 divisors (see below), whose sum is σ = 1293189891840. Its totient is φ = 215177854752.

The previous prime is 646064143007. The next prime is 646064143103. The reversal of 646064143014 is 410341460646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53347992 + ... + 53360100.

It is an arithmetic number, because the mean of its divisors is an integer number (40412184120).

Almost surely, 2^646064143014 is an apocalyptic number.

646064143014 is an abundant number, since it is smaller than the sum of its proper divisors (647125748826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

646064143014 is a wasteful number, since it uses less digits than its factorization.

646064143014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18684.

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 646064143014 in words is "six hundred forty-six billion, sixty-four million, one hundred forty-three thousand, fourteen".