170551056640420 has 12 divisors (see below), whose sum is σ = 358157218944924. Its totient is φ = 68220422656160.

The previous prime is 170551056640411. The next prime is 170551056640427. The reversal of 170551056640420 is 24046650155071.

It can be written as a sum of positive squares in 2 ways, for example, as 69305924700324 + 101245131940096 = 8325018^2 + 10062064^2 .

It is not an unprimeable number, because it can be changed into a prime (170551056640427) 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, 4263776415991 + ... + 4263776416030.

It is an arithmetic number, because the mean of its divisors is an integer number (29846434912077).

Almost surely, 2^{170551056640420} is an apocalyptic number.

170551056640420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170551056640420 is an abundant number, since it is smaller than the sum of its proper divisors (187606162304504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

170551056640420 is a wasteful number, since it uses less digits than its factorization.

170551056640420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8527552832030 (or 8527552832028 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 170551056640420 in words is "one hundred seventy trillion, five hundred fifty-one billion, fifty-six million, six hundred forty thousand, four hundred twenty".