6511105161001 has 12 divisors (see below), whose sum is σ = 7463812996416. Its totient is φ = 5564085757560.

The previous prime is 6511105160977. The next prime is 6511105161007. The reversal of 6511105161001 is 1001615011156.

It is not a de Polignac number, because 6511105161001 - 2²³ = 6511096772393 is a prime.

It is a super-2 number, since 2×6511105161001² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6511105161007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3478005 + ... + 5011858.

It is an arithmetic number, because the mean of its divisors is an integer number (621984416368).

Almost surely, 2^{6511105161001} is an apocalyptic number.

It is an amenable number.

6511105161001 is a deficient number, since it is larger than the sum of its proper divisors (952707835415).

6511105161001 is an frugal number, since it uses more digits than its factorization.

6511105161001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8490532 (or 8490201 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 28.

The spelling of 6511105161001 in words is "six trillion, five hundred eleven billion, one hundred five million, one hundred sixty-one thousand, one".