63465320020000 has 120 divisors (see below), whose sum is σ = 162922652012736. Its totient is φ = 24282383136000.

The previous prime is 63465320019917. The next prime is 63465320020021. The reversal of 63465320020000 is 2002356436.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68524044 + ... + 69444043.

Almost surely, 2^{63465320020000} is an apocalyptic number.

It is an amenable number.

63465320020000 is an abundant number, since it is smaller than the sum of its proper divisors (99457331992736).

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

63465320020000 is a wasteful number, since it uses less digits than its factorization.

63465320020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137968140 (or 137968117 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 63465320020000 its reverse (2002356436), we get a palindrome (63467322376436).

The spelling of 63465320020000 in words is "sixty-three trillion, four hundred sixty-five billion, three hundred twenty million, twenty thousand".