6516401141 has 4 divisors (see below), whose sum is σ = 6519487212. Its totient is φ = 6513315072.

The previous prime is 6516401107. The next prime is 6516401153. The reversal of 6516401141 is 1411046156.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2861715025 + 3654686116 = 53495^2 + 60454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6516401141 is a prime.

It is a super-2 number, since 2×6516401141² = 84926967660852203762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516401191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539866 + ... + 1544091.

It is an arithmetic number, because the mean of its divisors is an integer number (1629871803).

Almost surely, 2^6516401141 is an apocalyptic number.

It is an amenable number.

6516401141 is a deficient number, since it is larger than the sum of its proper divisors (3086071).

6516401141 is a wasteful number, since it uses less digits than its factorization.

6516401141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086070.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 6516401141 is about 80724.2289588448. The cubic root of 6516401141 is about 1867.8239380190.

Adding to 6516401141 its reverse (1411046156), we get a palindrome (7927447297).

The spelling of 6516401141 in words is "six billion, five hundred sixteen million, four hundred one thousand, one hundred forty-one".