6408072016 has 10 divisors (see below), whose sum is σ = 12415639562. Its totient is φ = 3204036000.

The previous prime is 6408071983. The next prime is 6408072017. The reversal of 6408072016 is 6102708046.

It can be written as a sum of positive squares in only one way, i.e., 6393601600 + 14470416 = 79960^2 + 3804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6408072017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200252235 + ... + 200252266.

Almost surely, 2^6408072016 is an apocalyptic number.

It is an amenable number.

6408072016 is a deficient number, since it is larger than the sum of its proper divisors (6007567546).

6408072016 is a wasteful number, since it uses less digits than its factorization.

6408072016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400504509 (or 400504503 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 6408072016 is about 80050.4342024451. The cubic root of 6408072016 is about 1857.4157675823.

The spelling of 6408072016 in words is "six billion, four hundred eight million, seventy-two thousand, sixteen".