66432000853 has 2 divisors, whose sum is σ = 66432000854. Its totient is φ = 66432000852.

The previous prime is 66432000829. The next prime is 66432000923. The reversal of 66432000853 is 35800023466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65565699364 + 866301489 = 256058^2 + 29433^2 .

It is a cyclic number.

It is not a de Polignac number, because 66432000853 - 2²⁵ = 66398446421 is a prime.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33216000426 + 33216000427.

It is an arithmetic number, because the mean of its divisors is an integer number (33216000427).

Almost surely, 2^66432000853 is an apocalyptic number.

It is an amenable number.

66432000853 is a deficient number, since it is larger than the sum of its proper divisors (1).

66432000853 is an equidigital number, since it uses as much as digits as its factorization.

66432000853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 66432000853 in words is "sixty-six billion, four hundred thirty-two million, eight hundred fifty-three", and thus it is an aban number.