380455194661 has 4 divisors (see below), whose sum is σ = 402834912012. Its totient is φ = 358075477312.

The previous prime is 380455194643. The next prime is 380455194683. The reversal of 380455194661 is 166491554083.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 266339598561 + 114115596100 = 516081^2 + 337810^2 .

It is a cyclic number.

It is not a de Polignac number, because 380455194661 - 2¹¹ = 380455192613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 380455194599 and 380455194608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380455198661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11189858650 + ... + 11189858683.

It is an arithmetic number, because the mean of its divisors is an integer number (100708728003).

Almost surely, 2^380455194661 is an apocalyptic number.

It is an amenable number.

380455194661 is a deficient number, since it is larger than the sum of its proper divisors (22379717351).

380455194661 is a wasteful number, since it uses less digits than its factorization.

380455194661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22379717350.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 380455194661 in words is "three hundred eighty billion, four hundred fifty-five million, one hundred ninety-four thousand, six hundred sixty-one".