6651065505105 has 48 divisors (see below), whose sum is σ = 13531537154304. Its totient is φ = 2958311756160.

The previous prime is 6651065505041. The next prime is 6651065505113. The reversal of 6651065505105 is 5015055601566.

6651065505105 is a `hidden beast` number, since 6 + 65 + 10 + 65 + 5 + 0 + 510 + 5 = 666.

It is not a de Polignac number, because 6651065505105 - 2⁶ = 6651065505041 is a prime.

It is a super-2 number, since 2×6651065505105² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 285319341 + ... + 285342650.

It is an arithmetic number, because the mean of its divisors is an integer number (281907024048).

Almost surely, 2^{6651065505105} is an apocalyptic number.

It is an amenable number.

6651065505105 is an abundant number, since it is smaller than the sum of its proper divisors (6880471649199).

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

6651065505105 is a wasteful number, since it uses less digits than its factorization.

6651065505105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570662046 (or 570662043 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 6651065505105 in words is "six trillion, six hundred fifty-one billion, sixty-five million, five hundred five thousand, one hundred five".