163556346701 has 8 divisors (see below), whose sum is σ = 181088167584. Its totient is φ = 146468369520.

The previous prime is 163556346691. The next prime is 163556346703. The reversal of 163556346701 is 107643655361.

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

It is not a de Polignac number, because 163556346701 - 2¹⁴ = 163556330317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163556346703) 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, 110960150 + ... + 110961623.

It is an arithmetic number, because the mean of its divisors is an integer number (22636020948).

Almost surely, 2^163556346701 is an apocalyptic number.

163556346701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163556346701 is a deficient number, since it is larger than the sum of its proper divisors (17531820883).

163556346701 is a wasteful number, since it uses less digits than its factorization.

163556346701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221921851.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 163556346701 in words is "one hundred sixty-three billion, five hundred fifty-six million, three hundred forty-six thousand, seven hundred one".