516105605661 has 16 divisors (see below), whose sum is σ = 707703492864. Its totient is φ = 334314437184.

The previous prime is 516105605623. The next prime is 516105605663. The reversal of 516105605661 is 166506501615.

It is not a de Polignac number, because 516105605661 - 2⁶ = 516105605597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516105605663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3090261 + ... + 3252986.

It is an arithmetic number, because the mean of its divisors is an integer number (44231468304).

Almost surely, 2^516105605661 is an apocalyptic number.

It is an amenable number.

516105605661 is a deficient number, since it is larger than the sum of its proper divisors (191597887203).

516105605661 is a wasteful number, since it uses less digits than its factorization.

516105605661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344020.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 516105605661 in words is "five hundred sixteen billion, one hundred five million, six hundred five thousand, six hundred sixty-one".