6406065552 has 40 divisors (see below), whose sum is σ = 16559315136. Its totient is φ = 2134024576.

The previous prime is 6406065551. The next prime is 6406065557. The reversal of 6406065552 is 2555606046.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6406065552.

It is not an unprimeable number, because it can be changed into a prime (6406065551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37813 + ... + 119339.

Almost surely, 2^6406065552 is an apocalyptic number.

It is an amenable number.

6406065552 is an abundant number, since it is smaller than the sum of its proper divisors (10153249584).

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

6406065552 is a wasteful number, since it uses less digits than its factorization.

6406065552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83175 (or 83169 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 6406065552 is about 80037.9007220954. The cubic root of 6406065552 is about 1857.2218857145.

The spelling of 6406065552 in words is "six billion, four hundred six million, sixty-five thousand, five hundred fifty-two".