63455254645565 has 8 divisors (see below), whose sum is σ = 76146464030208. Its totient is φ = 50764098079440.

The previous prime is 63455254645499. The next prime is 63455254645567. The reversal of 63455254645565 is 56554645255436.

It is a happy number.

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

It is not a de Polignac number, because 63455254645565 - 2³² = 63450959678269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63455254645567) 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, 10511657 + ... + 15407966.

It is an arithmetic number, because the mean of its divisors is an integer number (9518308003776).

Almost surely, 2^{63455254645565} is an apocalyptic number.

It is an amenable number.

63455254645565 is a deficient number, since it is larger than the sum of its proper divisors (12691209384643).

63455254645565 is a wasteful number, since it uses less digits than its factorization.

63455254645565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26409259.

The product of its digits is 1296000000, while the sum is 65.

The spelling of 63455254645565 in words is "sixty-three trillion, four hundred fifty-five billion, two hundred fifty-four million, six hundred forty-five thousand, five hundred sixty-five".