170052355735421 has 4 divisors (see below), whose sum is σ = 170052738199644. Its totient is φ = 170051973271200.

The previous prime is 170052355735351. The next prime is 170052355735487. The reversal of 170052355735421 is 124537553250071.

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 126799175544196 + 43253180191225 = 11260514^2 + 6576715^2 .

It is a cyclic number.

It is not a de Polignac number, because 170052355735421 - 2³⁰ = 170051281993597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 170052355735421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170052355735021) 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, 190564400 + ... + 191454681.

It is an arithmetic number, because the mean of its divisors is an integer number (42513184549911).

Almost surely, 2^{170052355735421} is an apocalyptic number.

It is an amenable number.

170052355735421 is a deficient number, since it is larger than the sum of its proper divisors (382464223).

170052355735421 is an equidigital number, since it uses as much as digits as its factorization.

170052355735421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382464222.

The product of its (nonzero) digits is 4410000, while the sum is 50.

The spelling of 170052355735421 in words is "one hundred seventy trillion, fifty-two billion, three hundred fifty-five million, seven hundred thirty-five thousand, four hundred twenty-one".