6542667432 has 160 divisors (see below), whose sum is σ = 21074328000. Its totient is φ = 1857655296.

The previous prime is 6542667421. The next prime is 6542667433. The reversal of 6542667432 is 2347662456.

6542667432 is a `hidden beast` number, since 6 + 542 + 6 + 6 + 74 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (6542667433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 734944 + ... + 743792.

It is an arithmetic number, because the mean of its divisors is an integer number (131714550).

Almost surely, 2^6542667432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6542667432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10537164000).

6542667432 is an abundant number, since it is smaller than the sum of its proper divisors (14531660568).

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

6542667432 is a wasteful number, since it uses less digits than its factorization.

6542667432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9037 (or 9024 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 6542667432 is about 80886.7568394233. The cubic root of 6542667432 is about 1870.3301800993.

The spelling of 6542667432 in words is "six billion, five hundred forty-two million, six hundred sixty-seven thousand, four hundred thirty-two".