516662552020 has 24 divisors (see below), whose sum is σ = 1091262992904. Its totient is φ = 205470423936.

The previous prime is 516662552011. The next prime is 516662552023. The reversal of 516662552020 is 20255266615.

It can be written as a sum of positive squares in 4 ways, for example, as 104336752144 + 412325799876 = 323012^2 + 642126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516662552023) 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, 74658759 + ... + 74665678.

It is an arithmetic number, because the mean of its divisors is an integer number (45469291371).

Almost surely, 2^516662552020 is an apocalyptic number.

It is an amenable number.

516662552020 is an abundant number, since it is smaller than the sum of its proper divisors (574600440884).

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

516662552020 is a wasteful number, since it uses less digits than its factorization.

516662552020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149324619 (or 149324617 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 516662552020 in words is "five hundred sixteen billion, six hundred sixty-two million, five hundred fifty-two thousand, twenty".