6415945533 has 6 divisors (see below), whose sum is σ = 9267476894. Its totient is φ = 4277297016.

The previous prime is 6415945511. The next prime is 6415945559. The reversal of 6415945533 is 3355495146.

6415945533 is a `hidden beast` number, since 6 + 4 + 1 + 5 + 94 + 553 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5404896324 + 1011049209 = 73518^2 + 31797^2 .

It is not a de Polignac number, because 6415945533 - 2¹⁸ = 6415683389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6415945583) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356441410 + ... + 356441427.

Almost surely, 2^6415945533 is an apocalyptic number.

It is an amenable number.

6415945533 is a deficient number, since it is larger than the sum of its proper divisors (2851531361).

6415945533 is a wasteful number, since it uses less digits than its factorization.

6415945533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712882843 (or 712882840 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The square root of 6415945533 is about 80099.5975832588. The cubic root of 6415945533 is about 1858.1761839794.

The spelling of 6415945533 in words is "six billion, four hundred fifteen million, nine hundred forty-five thousand, five hundred thirty-three".