6551015516500 has 96 divisors (see below), whose sum is σ = 17609129830656. Its totient is φ = 2073288412800.

The previous prime is 6551015516489. The next prime is 6551015516509. The reversal of 6551015516500 is 56155101556.

It is a super-3 number, since 3×6551015516500³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6551015516509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71943682 + ... + 72034681.

It is an arithmetic number, because the mean of its divisors is an integer number (183428435736).

Almost surely, 2^{6551015516500} is an apocalyptic number.

It is an amenable number.

6551015516500 is an abundant number, since it is smaller than the sum of its proper divisors (11058114314156).

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

6551015516500 is a wasteful number, since it uses less digits than its factorization.

6551015516500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143978402 (or 143978390 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 6551015516500 in words is "six trillion, five hundred fifty-one billion, fifteen million, five hundred sixteen thousand, five hundred".