511166867 has 2 divisors, whose sum is σ = 511166868. Its totient is φ = 511166866.

The previous prime is 511166857. The next prime is 511166917. The reversal of 511166867 is 768661115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 511166867 - 2²⁰ = 510118291 is a prime.

It is a super-2 number, since 2×511166867² = 522583131837191378, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (511166807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255583433 + 255583434.

It is an arithmetic number, because the mean of its divisors is an integer number (255583434).

Almost surely, 2^511166867 is an apocalyptic number.

511166867 is a deficient number, since it is larger than the sum of its proper divisors (1).

511166867 is an equidigital number, since it uses as much as digits as its factorization.

511166867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The square root of 511166867 is about 22608.9996903888. Note that the first 3 decimals coincide. The cubic root of 511166867 is about 799.5658409876.

The spelling of 511166867 in words is "five hundred eleven million, one hundred sixty-six thousand, eight hundred sixty-seven".