506666616 has 64 divisors (see below), whose sum is σ = 1339200000. Its totient is φ = 159296256.

The previous prime is 506666581. The next prime is 506666651. The reversal of 506666616 is 616666605.

It is an interprime number because it is at equal distance from previous prime (506666581) and next prime (506666651).

It is a super-2 number, since 2×506666616² = 513422119537782912, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106660 + ... + 111308.

It is an arithmetic number, because the mean of its divisors is an integer number (20925000).

Almost surely, 2^506666616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 506666616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669600000).

506666616 is an abundant number, since it is smaller than the sum of its proper divisors (832533384).

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

506666616 is a wasteful number, since it uses less digits than its factorization.

506666616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916 (or 4912 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 506666616 is about 22509.2562293826. The cubic root of 506666616 is about 797.2124943798.

It can be divided in two parts, 50 and 6666616, that added together give a palindrome (6666666).

The spelling of 506666616 in words is "five hundred six million, six hundred sixty-six thousand, six hundred sixteen".