6505616111064 has 96 divisors (see below), whose sum is σ = 18923901048000. Its totient is φ = 1858304642880.

The previous prime is 6505616111053. The next prime is 6505616111077. The reversal of 6505616111064 is 4601116165056.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4295287 + ... + 5608985.

It is an arithmetic number, because the mean of its divisors is an integer number (197123969250).

Almost surely, 2^{6505616111064} is an apocalyptic number.

It is an amenable number.

6505616111064 is an abundant number, since it is smaller than the sum of its proper divisors (12418284936936).

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

6505616111064 is a wasteful number, since it uses less digits than its factorization.

6505616111064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317933 (or 1317922 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 6505616111064 in words is "six trillion, five hundred five billion, six hundred sixteen million, one hundred eleven thousand, sixty-four".