6651001010505 has 8 divisors (see below), whose sum is σ = 10641601616832. Its totient is φ = 3547200538928.

The previous prime is 6651001010443. The next prime is 6651001010561. The reversal of 6651001010505 is 5050101001566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6651001010505 - 2¹⁵ = 6651000977737 is a prime.

It is a super-2 number, since 2×6651001010505² (a number of 26 digits) contains 22 as substring.

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, 221700033669 + ... + 221700033698.

It is an arithmetic number, because the mean of its divisors is an integer number (1330200202104).

Almost surely, 2^{6651001010505} is an apocalyptic number.

It is an amenable number.

6651001010505 is a deficient number, since it is larger than the sum of its proper divisors (3990600606327).

6651001010505 is a wasteful number, since it uses less digits than its factorization.

6651001010505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443400067375.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 6651001010505 in words is "six trillion, six hundred fifty-one billion, one million, ten thousand, five hundred five".