380423332661 has 2 divisors, whose sum is σ = 380423332662. Its totient is φ = 380423332660.

The previous prime is 380423332651. The next prime is 380423332699. The reversal of 380423332661 is 166233324083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379833085636 + 590247025 = 616306^2 + 24295^2 .

It is a cyclic number.

It is not a de Polignac number, because 380423332661 - 2¹⁰ = 380423331637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380423332651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190211666330 + 190211666331.

It is an arithmetic number, because the mean of its divisors is an integer number (190211666331).

Almost surely, 2^380423332661 is an apocalyptic number.

It is an amenable number.

380423332661 is a deficient number, since it is larger than the sum of its proper divisors (1).

380423332661 is an equidigital number, since it uses as much as digits as its factorization.

380423332661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 380423332661 in words is "three hundred eighty billion, four hundred twenty-three million, three hundred thirty-two thousand, six hundred sixty-one".