6535016640 has 84 divisors (see below), whose sum is σ = 22477744224. Its totient is φ = 1742670336.

The previous prime is 6535016573. The next prime is 6535016641. The reversal of 6535016640 is 466105356.

6535016640 is a `hidden beast` number, since 6 + 5 + 3 + 5 + 0 + 1 + 6 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6535016595 and 6535016604.

It is not an unprimeable number, because it can be changed into a prime (6535016641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1131672 + ... + 1137431.

Almost surely, 2^6535016640 is an apocalyptic number.

6535016640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6535016640 is an abundant number, since it is smaller than the sum of its proper divisors (15942727584).

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

6535016640 is a wasteful number, since it uses less digits than its factorization.

6535016640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269126 (or 2269113 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 6535016640 is about 80839.4497754654. The cubic root of 6535016640 is about 1869.6008604117.

The spelling of 6535016640 in words is "six billion, five hundred thirty-five million, sixteen thousand, six hundred forty".