511158668 has 6 divisors (see below), whose sum is σ = 894527676. Its totient is φ = 255579332.

The previous prime is 511158563. The next prime is 511158671. The reversal of 511158668 is 866851115.

It is a super-2 number, since 2×511158668² = 522566367743068448, 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 as a sum of consecutive naturals, namely, 63894830 + ... + 63894837.

It is an arithmetic number, because the mean of its divisors is an integer number (149087946).

Almost surely, 2^511158668 is an apocalyptic number.

It is an amenable number.

511158668 is a deficient number, since it is larger than the sum of its proper divisors (383369008).

511158668 is a wasteful number, since it uses less digits than its factorization.

511158668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127789671 (or 127789669 counting only the distinct ones).

The product of its digits is 57600, while the sum is 41.

The square root of 511158668 is about 22608.8183680616. The cubic root of 511158668 is about 799.5615660134.

The spelling of 511158668 in words is "five hundred eleven million, one hundred fifty-eight thousand, six hundred sixty-eight".