4863601665 has 80 divisors (see below), whose sum is σ = 9883473600. Its totient is φ = 2268321408.

The previous prime is 4863601637. The next prime is 4863601667. The reversal of 4863601665 is 5661063684.

4863601665 is a `hidden beast` number, since 4 + 8 + 636 + 0 + 1 + 6 + 6 + 5 = 666.

It is not a de Polignac number, because 4863601665 - 2⁸ = 4863601409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4863601665.

It is not an unprimeable number, because it can be changed into a prime (4863601667) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 75726 + ... + 124344.

It is an arithmetic number, because the mean of its divisors is an integer number (123543420).

Almost surely, 2^4863601665 is an apocalyptic number.

4863601665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4863601665 is an abundant number, since it is smaller than the sum of its proper divisors (5019871935).

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

4863601665 is a wasteful number, since it uses less digits than its factorization.

4863601665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48668 (or 48659 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 4863601665 is about 69739.5272782946. The cubic root of 4863601665 is about 1694.2831803344.

The spelling of 4863601665 in words is "four billion, eight hundred sixty-three million, six hundred one thousand, six hundred sixty-five".