6545990718 has 96 divisors (see below), whose sum is σ = 14718812160. Its totient is φ = 2101619520.

The previous prime is 6545990707. The next prime is 6545990723. The reversal of 6545990718 is 8170995456.

6545990718 is a `hidden beast` number, since 6 + 545 + 9 + 90 + 7 + 1 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12099528 + ... + 12100068.

It is an arithmetic number, because the mean of its divisors is an integer number (153320960).

Almost surely, 2^6545990718 is an apocalyptic number.

6545990718 is an abundant number, since it is smaller than the sum of its proper divisors (8172821442).

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

6545990718 is a wasteful number, since it uses less digits than its factorization.

6545990718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 6545990718 is about 80907.2970627495. The cubic root of 6545990718 is about 1870.6467986687.

The spelling of 6545990718 in words is "six billion, five hundred forty-five million, nine hundred ninety thousand, seven hundred eighteen".