6541640996 has 24 divisors (see below), whose sum is σ = 12826119936. Its totient is φ = 2893108320.

The previous prime is 6541640981. The next prime is 6541641053. The reversal of 6541640996 is 6990461456.

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, 2007476 + ... + 2010731.

It is an arithmetic number, because the mean of its divisors is an integer number (534421664).

Almost surely, 2^6541640996 is an apocalyptic number.

It is an amenable number.

6541640996 is a deficient number, since it is larger than the sum of its proper divisors (6284478940).

6541640996 is a wasteful number, since it uses less digits than its factorization.

6541640996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018259 (or 4018257 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 6541640996 is about 80880.4116952925. The cubic root of 6541640996 is about 1870.2323670564.

The spelling of 6541640996 in words is "six billion, five hundred forty-one million, six hundred forty thousand, nine hundred ninety-six".