63465320020001 has 8 divisors (see below), whose sum is σ = 64027453797384. Its totient is φ = 62903194905600.

The previous prime is 63465320019917. The next prime is 63465320020021. The reversal of 63465320020001 is 10002002356436.

It can be written as a sum of positive squares in 4 ways, for example, as 3073009000000 + 60392311020001 = 1753000^2 + 7771249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63465320020001 is a prime.

It is a super-2 number, since 2×63465320020001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63465320020001.

It is not an unprimeable number, because it can be changed into a prime (63465320020021) 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, 13020725 + ... + 17218301.

It is an arithmetic number, because the mean of its divisors is an integer number (8003431724673).

Almost surely, 2^{63465320020001} is an apocalyptic number.

It is an amenable number.

63465320020001 is a deficient number, since it is larger than the sum of its proper divisors (562133777383).

63465320020001 is a wasteful number, since it uses less digits than its factorization.

63465320020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331491.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 63465320020001 its reverse (10002002356436), we get a palindrome (73467322376437).

The spelling of 63465320020001 in words is "sixty-three trillion, four hundred sixty-five billion, three hundred twenty million, twenty thousand, one".