646053555014 has 16 divisors (see below), whose sum is σ = 1107617238528. Its totient is φ = 276855880392.

The previous prime is 646053555011. The next prime is 646053555019. The reversal of 646053555014 is 410555350646.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646053555011) 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, 1851614 + ... + 2172689.

It is an arithmetic number, because the mean of its divisors is an integer number (69226077408).

Almost surely, 2^646053555014 is an apocalyptic number.

646053555014 is a deficient number, since it is larger than the sum of its proper divisors (461563683514).

646053555014 is a wasteful number, since it uses less digits than its factorization.

646053555014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035779.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 646053555014 in words is "six hundred forty-six billion, fifty-three million, five hundred fifty-five thousand, fourteen".