6518516418061 has 8 divisors (see below), whose sum is σ = 7036479492480. Its totient is φ = 6020099120112.

The previous prime is 6518516418049. The next prime is 6518516418109. The reversal of 6518516418061 is 1608146158156.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6518516418061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6518516413061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4886443425 + ... + 4886444758.

It is an arithmetic number, because the mean of its divisors is an integer number (879559936560).

Almost surely, 2^{6518516418061} is an apocalyptic number.

It is an amenable number.

6518516418061 is a deficient number, since it is larger than the sum of its proper divisors (517963074419).

6518516418061 is a wasteful number, since it uses less digits than its factorization.

6518516418061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9772888235.

The product of its (nonzero) digits is 1382400, while the sum is 52.

The spelling of 6518516418061 in words is "six trillion, five hundred eighteen billion, five hundred sixteen million, four hundred eighteen thousand, sixty-one".