63466544650241 has 4 divisors (see below), whose sum is σ = 63466564686852. Its totient is φ = 63466524613632.

The previous prime is 63466544650237. The next prime is 63466544650247. The reversal of 63466544650241 is 14205644566436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26004849255025 + 37461695395216 = 5099495^2 + 6120596^2 .

It is a cyclic number.

It is not a de Polignac number, because 63466544650241 - 2² = 63466544650237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63466544650247) 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, 4102640 + ... + 11990193.

It is an arithmetic number, because the mean of its divisors is an integer number (15866641171713).

Almost surely, 2^{63466544650241} is an apocalyptic number.

It is an amenable number.

63466544650241 is a deficient number, since it is larger than the sum of its proper divisors (20036611).

63466544650241 is a wasteful number, since it uses less digits than its factorization.

63466544650241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20036610.

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

The spelling of 63466544650241 in words is "sixty-three trillion, four hundred sixty-six billion, five hundred forty-four million, six hundred fifty thousand, two hundred forty-one".