6711499640 has 16 divisors (see below), whose sum is σ = 15100874280. Its totient is φ = 2684599840.

The previous prime is 6711499631. The next prime is 6711499643. The reversal of 6711499640 is 469941176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6711499643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83893706 + ... + 83893785.

Almost surely, 2^6711499640 is an apocalyptic number.

It is an amenable number.

6711499640 is an abundant number, since it is smaller than the sum of its proper divisors (8389374640).

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

6711499640 is a wasteful number, since it uses less digits than its factorization.

6711499640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167787502 (or 167787498 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 6711499640 is about 81923.7428344189. The cubic root of 6711499640 is about 1886.2815798659.

The spelling of 6711499640 in words is "six billion, seven hundred eleven million, four hundred ninety-nine thousand, six hundred forty".