63443550164 has 12 divisors (see below), whose sum is σ = 111209126784. Its totient is φ = 31669513944.

The previous prime is 63443550119. The next prime is 63443550169. The reversal of 63443550164 is 46105534436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63443550169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13062554 + ... + 13067409.

It is an arithmetic number, because the mean of its divisors is an integer number (9267427232).

Almost surely, 2^63443550164 is an apocalyptic number.

It is an amenable number.

63443550164 is a deficient number, since it is larger than the sum of its proper divisors (47765576620).

63443550164 is a wasteful number, since it uses less digits than its factorization.

63443550164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26130574 (or 26130572 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 63443550164 in words is "sixty-three billion, four hundred forty-three million, five hundred fifty thousand, one hundred sixty-four".