6600997140 has 48 divisors (see below), whose sum is σ = 18487008960. Its totient is φ = 1759864320.

The previous prime is 6600997127. The next prime is 6600997147. The reversal of 6600997140 is 417990066.

It is a junction number, because it is equal to n+sod(n) for n = 6600997092 and 6600997101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6600997147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329820 + ... + 349260.

It is an arithmetic number, because the mean of its divisors is an integer number (385146020).

Almost surely, 2^6600997140 is an apocalyptic number.

6600997140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6600997140 is an abundant number, since it is smaller than the sum of its proper divisors (11886011820).

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

6600997140 is a wasteful number, since it uses less digits than its factorization.

6600997140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25112 (or 25110 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 6600997140 is about 81246.5207870466. The cubic root of 6600997140 is about 1875.8719158995.

The spelling of 6600997140 in words is "six billion, six hundred million, nine hundred ninety-seven thousand, one hundred forty".