65464619618 has 8 divisors (see below), whose sum is σ = 98198359248. Its totient is φ = 32731833204.

The previous prime is 65464619611. The next prime is 65464619639. The reversal of 65464619618 is 81691646456.

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

It is not an unprimeable number, because it can be changed into a prime (65464619611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30296 + ... + 363107.

It is an arithmetic number, because the mean of its divisors is an integer number (12274794906).

Almost surely, 2^65464619618 is an apocalyptic number.

65464619618 is a deficient number, since it is larger than the sum of its proper divisors (32733739630).

65464619618 is a wasteful number, since it uses less digits than its factorization.

65464619618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476608.

The product of its digits is 7464960, while the sum is 56.

The spelling of 65464619618 in words is "sixty-five billion, four hundred sixty-four million, six hundred nineteen thousand, six hundred eighteen".