163420355061 has 64 divisors (see below), whose sum is σ = 261916185600. Its totient is φ = 100353556800.

The previous prime is 163420355051. The next prime is 163420355081. The reversal of 163420355061 is 160553024361.

163420355061 is a `hidden beast` number, since 1 + 6 + 3 + 42 + 0 + 3 + 550 + 61 = 666.

It is not a de Polignac number, because 163420355061 - 2⁵ = 163420355029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163420355041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45761406 + ... + 45764976.

It is an arithmetic number, because the mean of its divisors is an integer number (4092440400).

Almost surely, 2^163420355061 is an apocalyptic number.

It is an amenable number.

163420355061 is a deficient number, since it is larger than the sum of its proper divisors (98495830539).

163420355061 is a wasteful number, since it uses less digits than its factorization.

163420355061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6047 (or 6041 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 163420355061 in words is "one hundred sixty-three billion, four hundred twenty million, three hundred fifty-five thousand, sixty-one".