66900059 has 2 divisors, whose sum is σ = 66900060. Its totient is φ = 66900058.

The previous prime is 66900037. The next prime is 66900089. The reversal of 66900059 is 95000966.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66900059 - 2²⁴ = 50122843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66900089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33450029 + 33450030.

It is an arithmetic number, because the mean of its divisors is an integer number (33450030).

Almost surely, 2^66900059 is an apocalyptic number.

66900059 is a deficient number, since it is larger than the sum of its proper divisors (1).

66900059 is an equidigital number, since it uses as much as digits as its factorization.

66900059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 66900059 is about 8179.2456253618. The cubic root of 66900059 is about 405.9527616989.

The spelling of 66900059 in words is "sixty-six million, nine hundred thousand, fifty-nine".