511006666550 has 24 divisors (see below), whose sum is σ = 950491649016. Its totient is φ = 204398527040.

The previous prime is 511006666537. The next prime is 511006666559. The reversal of 511006666550 is 55666600115.

It is a super-2 number, since 2×511006666550² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511006666498 and 511006666507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511006666559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4004837 + ... + 4130463.

It is an arithmetic number, because the mean of its divisors is an integer number (39603818709).

Almost surely, 2^511006666550 is an apocalyptic number.

511006666550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

511006666550 is a deficient number, since it is larger than the sum of its proper divisors (439484982466).

511006666550 is a wasteful number, since it uses less digits than its factorization.

511006666550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206992 (or 206987 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 511006666550 in words is "five hundred eleven billion, six million, six hundred sixty-six thousand, five hundred fifty".