6603986540 has 12 divisors (see below), whose sum is σ = 13868371776. Its totient is φ = 2641594608.

The previous prime is 6603986539. The next prime is 6603986621. The reversal of 6603986540 is 456893066.

It is a super-2 number, since 2×6603986540² = 87225276441002343200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165099644 + ... + 165099683.

It is an arithmetic number, because the mean of its divisors is an integer number (1155697648).

Almost surely, 2^6603986540 is an apocalyptic number.

It is an amenable number.

6603986540 is an abundant number, since it is smaller than the sum of its proper divisors (7264385236).

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

6603986540 is a wasteful number, since it uses less digits than its factorization.

6603986540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330199336 (or 330199334 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 6603986540 is about 81264.9158001164. The cubic root of 6603986540 is about 1876.1550491430.

The spelling of 6603986540 in words is "six billion, six hundred three million, nine hundred eighty-six thousand, five hundred forty".