506020166 has 4 divisors (see below), whose sum is σ = 759030252. Its totient is φ = 253010082.

The previous prime is 506020157. The next prime is 506020169. The reversal of 506020166 is 661020605.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506020169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126505040 + ... + 126505043.

It is an arithmetic number, because the mean of its divisors is an integer number (189757563).

Almost surely, 2^506020166 is an apocalyptic number.

506020166 is a deficient number, since it is larger than the sum of its proper divisors (253010086).

506020166 is a wasteful number, since it uses less digits than its factorization.

506020166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253010085.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 506020166 is about 22494.8919979626. The cubic root of 506020166 is about 796.8732987194.

The spelling of 506020166 in words is "five hundred six million, twenty thousand, one hundred sixty-six".