6505015404 has 96 divisors (see below), whose sum is σ = 16213317120. Its totient is φ = 2026257408.

The previous prime is 6505015373. The next prime is 6505015409. The reversal of 6505015404 is 4045105056.

It is not an unprimeable number, because it can be changed into a prime (6505015409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1689009 + ... + 1692855.

It is an arithmetic number, because the mean of its divisors is an integer number (168888720).

Almost surely, 2^6505015404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6505015404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8106658560).

6505015404 is an abundant number, since it is smaller than the sum of its proper divisors (9708301716).

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

6505015404 is a wasteful number, since it uses less digits than its factorization.

6505015404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 6505015404 is about 80653.6757004912. The cubic root of 6505015404 is about 1866.7354563227.

The spelling of 6505015404 in words is "six billion, five hundred five million, fifteen thousand, four hundred four".