646054553112 has 16 divisors (see below), whose sum is σ = 1615136382840. Its totient is φ = 215351517696.

The previous prime is 646054553107. The next prime is 646054553117. The reversal of 646054553112 is 211355450646.

It is an interprime number because it is at equal distance from previous prime (646054553107) and next prime (646054553117).

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13459469833 + ... + 13459469880.

Almost surely, 2^646054553112 is an apocalyptic number.

It is an amenable number.

646054553112 is an abundant number, since it is smaller than the sum of its proper divisors (969081829728).

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

646054553112 is a wasteful number, since it uses less digits than its factorization.

646054553112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26918939722 (or 26918939718 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 646054553112 in words is "six hundred forty-six billion, fifty-four million, five hundred fifty-three thousand, one hundred twelve".