501606601616 has 10 divisors (see below), whose sum is σ = 971862790662. Its totient is φ = 250803300800.

The previous prime is 501606601567. The next prime is 501606601621. The reversal of 501606601616 is 616106606105.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 490285641616 + 11320960000 = 700204^2 + 106400^2 .

It is a super-2 number, since 2×501606601616² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 501606601616.

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 as a sum of consecutive naturals, namely, 15675206285 + ... + 15675206316.

Almost surely, 2^501606601616 is an apocalyptic number.

It is an amenable number.

501606601616 is a deficient number, since it is larger than the sum of its proper divisors (470256189046).

501606601616 is a wasteful number, since it uses less digits than its factorization.

501606601616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31350412609 (or 31350412603 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 501606601616 in words is "five hundred one billion, six hundred six million, six hundred one thousand, six hundred sixteen".