6505511164 has 24 divisors (see below), whose sum is σ = 11853522576. Its totient is φ = 3121392000.

The previous prime is 6505511147. The next prime is 6505511167. The reversal of 6505511164 is 4611155056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505511167) 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, 315142 + ... + 335149.

It is an arithmetic number, because the mean of its divisors is an integer number (493896774).

Almost surely, 2^6505511164 is an apocalyptic number.

It is an amenable number.

6505511164 is a deficient number, since it is larger than the sum of its proper divisors (5348011412).

6505511164 is a wasteful number, since it uses less digits than its factorization.

6505511164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650397 (or 650395 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 6505511164 is about 80656.7490294520. The cubic root of 6505511164 is about 1866.7828776432.

The spelling of 6505511164 in words is "six billion, five hundred five million, five hundred eleven thousand, one hundred sixty-four".