63665605359465 has 8 divisors (see below), whose sum is σ = 101864968575168. Its totient is φ = 33954989525040.

The previous prime is 63665605359437. The next prime is 63665605359469. The reversal of 63665605359465 is 56495350656636.

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

It is not a de Polignac number, because 63665605359465 - 2¹⁶ = 63665605293929 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63665605359465.

It is not an unprimeable number, because it can be changed into a prime (63665605359469) 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, 2122186845301 + ... + 2122186845330.

It is an arithmetic number, because the mean of its divisors is an integer number (12733121071896).

Almost surely, 2^{63665605359465} is an apocalyptic number.

It is an amenable number.

63665605359465 is a deficient number, since it is larger than the sum of its proper divisors (38199363215703).

63665605359465 is a wasteful number, since it uses less digits than its factorization.

63665605359465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244373690639.

The product of its (nonzero) digits is 1574640000, while the sum is 69.

The spelling of 63665605359465 in words is "sixty-three trillion, six hundred sixty-five billion, six hundred five million, three hundred fifty-nine thousand, four hundred sixty-five".