63646441262552 has 32 divisors (see below), whose sum is σ = 119902789182000. Its totient is φ = 31672519603200.

The previous prime is 63646441262531. The next prime is 63646441262587. The reversal of 63646441262552 is 25526214464636.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6439349 + ... + 12990692.

Almost surely, 2^{63646441262552} is an apocalyptic number.

It is an amenable number.

63646441262552 is a deficient number, since it is larger than the sum of its proper divisors (56256347919448).

63646441262552 is a wasteful number, since it uses less digits than its factorization.

63646441262552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19431987 (or 19431983 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 56.

The spelling of 63646441262552 in words is "sixty-three trillion, six hundred forty-six billion, four hundred forty-one million, two hundred sixty-two thousand, five hundred fifty-two".