6404004016 has 10 divisors (see below), whose sum is σ = 12407757812. Its totient is φ = 3202002000.

The previous prime is 6404004001. The next prime is 6404004043. The reversal of 6404004016 is 6104004046.

It is a super-2 number, since 2×6404004016² = 82022534873888256512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200125110 + ... + 200125141.

Almost surely, 2^6404004016 is an apocalyptic number.

It is an amenable number.

6404004016 is a deficient number, since it is larger than the sum of its proper divisors (6003753796).

6404004016 is a wasteful number, since it uses less digits than its factorization.

6404004016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400250259 (or 400250253 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 6404004016 is about 80025.0211871262. The cubic root of 6404004016 is about 1857.0226401439.

The spelling of 6404004016 in words is "six billion, four hundred four million, four thousand, sixteen".