620166011 has 2 divisors, whose sum is σ = 620166012. Its totient is φ = 620166010.

The previous prime is 620165981. The next prime is 620166017. The reversal of 620166011 is 110661026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620166011 - 2²⁶ = 553057147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (620166017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310083005 + 310083006.

It is an arithmetic number, because the mean of its divisors is an integer number (310083006).

Almost surely, 2^620166011 is an apocalyptic number.

620166011 is a deficient number, since it is larger than the sum of its proper divisors (1).

620166011 is an equidigital number, since it uses as much as digits as its factorization.

620166011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 620166011 is about 24903.1325539579. The cubic root of 620166011 is about 852.7779979315. Note that the first 3 decimals are identical.

The spelling of 620166011 in words is "six hundred twenty million, one hundred sixty-six thousand, eleven".