6541471720 has 32 divisors (see below), whose sum is σ = 16820928000. Its totient is φ = 2242790208.

The previous prime is 6541471687. The next prime is 6541471733. The reversal of 6541471720 is 271741456.

It is a self number, because there is not a number n which added to its sum of digits gives 6541471720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11680920 + ... + 11681479.

It is an arithmetic number, because the mean of its divisors is an integer number (525654000).

Almost surely, 2^6541471720 is an apocalyptic number.

It is an amenable number.

6541471720 is an abundant number, since it is smaller than the sum of its proper divisors (10279456280).

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

6541471720 is a wasteful number, since it uses less digits than its factorization.

6541471720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23362417 (or 23362413 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 6541471720 is about 80879.3652299522. The cubic root of 6541471720 is about 1870.2162351111.

The spelling of 6541471720 in words is "six billion, five hundred forty-one million, four hundred seventy-one thousand, seven hundred twenty".