520166616654 has 8 divisors (see below), whose sum is σ = 1040333233320. Its totient is φ = 173388872216.

The previous prime is 520166616617. The next prime is 520166616679. The reversal of 520166616654 is 456616661025.

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

520166616654 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43347218049 + ... + 43347218060.

It is an arithmetic number, because the mean of its divisors is an integer number (130041654165).

Almost surely, 2^520166616654 is an apocalyptic number.

520166616654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520166616654 is a wasteful number, since it uses less digits than its factorization.

520166616654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86694436114.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 520166616654 in words is "five hundred twenty billion, one hundred sixty-six million, six hundred sixteen thousand, six hundred fifty-four".