6754521660 has 96 divisors (see below), whose sum is σ = 20594649600. Its totient is φ = 1647555840.

The previous prime is 6754521647. The next prime is 6754521677. The reversal of 6754521660 is 661254576.

It is a hoax number, since the sum of its digits (42) 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69096 + ... + 135215.

It is an arithmetic number, because the mean of its divisors is an integer number (214527600).

Almost surely, 2^6754521660 is an apocalyptic number.

6754521660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6754521660 is an abundant number, since it is smaller than the sum of its proper divisors (13840127940).

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

6754521660 is a wasteful number, since it uses less digits than its factorization.

6754521660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204371 (or 204369 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 6754521660 is about 82185.8969653553. The cubic root of 6754521660 is about 1890.3034758059.

The spelling of 6754521660 in words is "six billion, seven hundred fifty-four million, five hundred twenty-one thousand, six hundred sixty".