170571872020 has 48 divisors (see below), whose sum is σ = 391402424448. Its totient is φ = 61924901760.

The previous prime is 170571871997. The next prime is 170571872041. The reversal of 170571872020 is 20278175071.

170571872020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497544 + ... + 767263.

It is an arithmetic number, because the mean of its divisors is an integer number (8154217176).

Almost surely, 2^170571872020 is an apocalyptic number.

170571872020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170571872020 is an abundant number, since it is smaller than the sum of its proper divisors (220830552428).

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

170571872020 is a wasteful number, since it uses less digits than its factorization.

170571872020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265440 (or 1265438 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 40.

The spelling of 170571872020 in words is "one hundred seventy billion, five hundred seventy-one million, eight hundred seventy-two thousand, twenty".