501016690 has 16 divisors (see below), whose sum is σ = 954879192. Its totient is φ = 188617984.

The previous prime is 501016669. The next prime is 501016721. The reversal of 501016690 is 96610105.

It can be written as a sum of positive squares in 4 ways, for example, as 312476329 + 188540361 = 17677^2 + 13731^2 .

It is a super-2 number, since 2×501016690² = 502035447317112200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1473409 + ... + 1473748.

Almost surely, 2^501016690 is an apocalyptic number.

501016690 is a deficient number, since it is larger than the sum of its proper divisors (453862502).

501016690 is a wasteful number, since it uses less digits than its factorization.

501016690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947181.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 501016690 is about 22383.4021095990. The cubic root of 501016690 is about 794.2381266916.

Adding to 501016690 its reverse (96610105), we get a palindrome (597626795).

The spelling of 501016690 in words is "five hundred one million, sixteen thousand, six hundred ninety".