6405501016 has 16 divisors (see below), whose sum is σ = 12013104600. Its totient is φ = 3202006464.

The previous prime is 6405501007. The next prime is 6405501017. The reversal of 6405501016 is 6101055046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405501017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55530 + ... + 126073.

Almost surely, 2^6405501016 is an apocalyptic number.

It is an amenable number.

6405501016 is a deficient number, since it is larger than the sum of its proper divisors (5607603584).

6405501016 is a wasteful number, since it uses less digits than its factorization.

6405501016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186018 (or 186014 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6405501016 is about 80034.3739651907. The cubic root of 6405501016 is about 1857.1673280765.

The spelling of 6405501016 in words is "six billion, four hundred five million, five hundred one thousand, sixteen".