420167750145361 has 4 divisors (see below), whose sum is σ = 420173151045172. Its totient is φ = 420162349245552.

The previous prime is 420167750145313. The next prime is 420167750145371. The reversal of 420167750145361 is 163541057761024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 322362454347025 + 97805295798336 = 17954455^2 + 9889656^2 .

It is a cyclic number.

It is not a de Polignac number, because 420167750145361 - 2¹³ = 420167750137169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420167750145299 and 420167750145308.

It is not an unprimeable number, because it can be changed into a prime (420167750145371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2700333210 + ... + 2700488803.

It is an arithmetic number, because the mean of its divisors is an integer number (105043287761293).

Almost surely, 2^{420167750145361} is an apocalyptic number.

It is an amenable number.

420167750145361 is a deficient number, since it is larger than the sum of its proper divisors (5400899811).

420167750145361 is an equidigital number, since it uses as much as digits as its factorization.

420167750145361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400899810.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 420167750145361 in words is "four hundred twenty trillion, one hundred sixty-seven billion, seven hundred fifty million, one hundred forty-five thousand, three hundred sixty-one".