646054553110 has 16 divisors (see below), whose sum is σ = 1166192531136. Its totient is φ = 257689746688.

The previous prime is 646054553107. The next prime is 646054553117. The reversal of 646054553110 is 11355450646.

It is a happy number.

646054553110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646054553117) 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, 91505614 + ... + 91512673.

It is an arithmetic number, because the mean of its divisors is an integer number (72887033196).

Almost surely, 2^646054553110 is an apocalyptic number.

646054553110 is a deficient number, since it is larger than the sum of its proper divisors (520137978026).

646054553110 is a wasteful number, since it uses less digits than its factorization.

646054553110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183018647.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 646054553110 in words is "six hundred forty-six billion, fifty-four million, five hundred fifty-three thousand, one hundred ten".