516640118061 has 4 divisors (see below), whose sum is σ = 688853490752. Its totient is φ = 344426745372.

The previous prime is 516640118047. The next prime is 516640118069. The reversal of 516640118061 is 160811046615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 516640118061 - 2⁶ = 516640117997 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 (516640118069) 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, 86106686341 + ... + 86106686346.

It is an arithmetic number, because the mean of its divisors is an integer number (172213372688).

Almost surely, 2^516640118061 is an apocalyptic number.

It is an amenable number.

516640118061 is a deficient number, since it is larger than the sum of its proper divisors (172213372691).

516640118061 is a wasteful number, since it uses less digits than its factorization.

516640118061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172213372690.

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 516640118061 in words is "five hundred sixteen billion, six hundred forty million, one hundred eighteen thousand, sixty-one".