163220053466351 has 4 divisors (see below), whose sum is σ = 186537203961552. Its totient is φ = 139902902971152.

The previous prime is 163220053466329. The next prime is 163220053466383. The reversal of 163220053466351 is 153664350022361.

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

It is a cyclic number.

It is not a de Polignac number, because 163220053466351 - 2³⁴ = 163202873597167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163220053466296 and 163220053466305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163220053466321) 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, 11658575247590 + ... + 11658575247603.

It is an arithmetic number, because the mean of its divisors is an integer number (46634300990388).

Almost surely, 2^{163220053466351} is an apocalyptic number.

163220053466351 is a deficient number, since it is larger than the sum of its proper divisors (23317150495201).

163220053466351 is an equidigital number, since it uses as much as digits as its factorization.

163220053466351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23317150495200.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 163220053466351 in words is "one hundred sixty-three trillion, two hundred twenty billion, fifty-three million, four hundred sixty-six thousand, three hundred fifty-one".