163542214043777 has 8 divisors (see below), whose sum is σ = 170715753784872. Its totient is φ = 156513594297600.

The previous prime is 163542214043729. The next prime is 163542214043779. The reversal of 163542214043777 is 777340412245361.

It can be written as a sum of positive squares in 4 ways, for example, as 52847069620801 + 110695144422976 = 7269599^2 + 10521176^2 .

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 163542214043777 - 2¹² = 163542214039681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163542214043779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36229996424 + ... + 36230000937.

It is an arithmetic number, because the mean of its divisors is an integer number (21339469223109).

Almost surely, 2^{163542214043777} is an apocalyptic number.

It is an amenable number.

163542214043777 is a deficient number, since it is larger than the sum of its proper divisors (7173539741095).

163542214043777 is an equidigital number, since it uses as much as digits as its factorization.

163542214043777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72459997459.

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 163542214043777 in words is "one hundred sixty-three trillion, five hundred forty-two billion, two hundred fourteen million, forty-three thousand, seven hundred seventy-seven".