6556165715530 has 16 divisors (see below), whose sum is σ = 12181778878464. Its totient is φ = 2537870599440.

The previous prime is 6556165715527. The next prime is 6556165715663. The reversal of 6556165715530 is 355175616556.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10574460522 + ... + 10574461141.

It is an arithmetic number, because the mean of its divisors is an integer number (761361179904).

Almost surely, 2^{6556165715530} is an apocalyptic number.

6556165715530 is a deficient number, since it is larger than the sum of its proper divisors (5625613162934).

6556165715530 is a wasteful number, since it uses less digits than its factorization.

6556165715530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21148921701.

The product of its (nonzero) digits is 14175000, while the sum is 55.

The spelling of 6556165715530 in words is "six trillion, five hundred fifty-six billion, one hundred sixty-five million, seven hundred fifteen thousand, five hundred thirty".