64061616047 has 64 divisors (see below), whose sum is σ = 79686149760. Its totient is φ = 50696755200.

The previous prime is 64061616023. The next prime is 64061616049. The reversal of 64061616047 is 74061616046.

It is not a de Polignac number, because 64061616047 - 2⁶ = 64061615983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64061615995 and 64061616013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64061616049) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39715013 + ... + 39716625.

It is an arithmetic number, because the mean of its divisors is an integer number (1245096090).

Almost surely, 2^64061616047 is an apocalyptic number.

64061616047 is a deficient number, since it is larger than the sum of its proper divisors (15624533713).

64061616047 is a wasteful number, since it uses less digits than its factorization.

64061616047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884.

The product of its (nonzero) digits is 145152, while the sum is 41.

Subtracting 64061616047 from its reverse (74061616046), we obtain a palindrome (9999999999).

The spelling of 64061616047 in words is "sixty-four billion, sixty-one million, six hundred sixteen thousand, forty-seven".