6505211211942 has 16 divisors (see below), whose sum is σ = 13459057680240. Its totient is φ = 2093631194592.

The previous prime is 6505211211923. The next prime is 6505211211943. The reversal of 6505211211942 is 2491121125056.

It is a super-3 number, since 3×6505211211942³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6505211211942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505211211943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18693135493 + ... + 18693135840.

It is an arithmetic number, because the mean of its divisors is an integer number (841191105015).

Almost surely, 2^{6505211211942} is an apocalyptic number.

6505211211942 is an abundant number, since it is smaller than the sum of its proper divisors (6953846468298).

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

6505211211942 is a wasteful number, since it uses less digits than its factorization.

6505211211942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37386271367.

The product of its (nonzero) digits is 43200, while the sum is 39.

Adding to 6505211211942 its reverse (2491121125056), we get a palindrome (8996332336998).

The spelling of 6505211211942 in words is "six trillion, five hundred five billion, two hundred eleven million, two hundred eleven thousand, nine hundred forty-two".