194346966533 has 2 divisors, whose sum is σ = 194346966534. Its totient is φ = 194346966532.

The previous prime is 194346966523. The next prime is 194346966601. The reversal of 194346966533 is 335669643491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193725860449 + 621106084 = 440143^2 + 24922^2 .

It is a cyclic number.

It is not a de Polignac number, because 194346966533 - 2²² = 194342772229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194346966523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97173483266 + 97173483267.

It is an arithmetic number, because the mean of its divisors is an integer number (97173483267).

Almost surely, 2^194346966533 is an apocalyptic number.

It is an amenable number.

194346966533 is a deficient number, since it is larger than the sum of its proper divisors (1).

194346966533 is an equidigital number, since it uses as much as digits as its factorization.

194346966533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37791360, while the sum is 59.

The spelling of 194346966533 in words is "one hundred ninety-four billion, three hundred forty-six million, nine hundred sixty-six thousand, five hundred thirty-three".