161463081960577 has 8 divisors (see below), whose sum is σ = 162573688521000. Its totient is φ = 160352834889984.

The previous prime is 161463081960563. The next prime is 161463081960581. The reversal of 161463081960577 is 775069180364161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19036257659136 + 142426824301441 = 4363056^2 + 11934271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161463081960577 - 2⁷ = 161463081960449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161463081966577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88971048 + ... + 90767689.

It is an arithmetic number, because the mean of its divisors is an integer number (20321711065125).

Almost surely, 2^{161463081960577} is an apocalyptic number.

It is an amenable number.

161463081960577 is a deficient number, since it is larger than the sum of its proper divisors (1110606560423).

161463081960577 is a wasteful number, since it uses less digits than its factorization.

161463081960577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179744915.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 161463081960577 in words is "one hundred sixty-one trillion, four hundred sixty-three billion, eighty-one million, nine hundred sixty thousand, five hundred seventy-seven".