171642276062420 has 144 divisors (see below), whose sum is σ = 384548582560464. Its totient is φ = 64129754726400.

The previous prime is 171642276062393. The next prime is 171642276062441. The reversal of 171642276062420 is 24260672246171.

It can be written as a sum of positive squares in 8 ways, for example, as 2534826988996 + 169107449073424 = 1592114^2 + 13004132^2 .

It is a super-2 number, since 2×171642276062420² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12189629780 + ... + 12189643860.

It is an arithmetic number, because the mean of its divisors is an integer number (2670476267781).

Almost surely, 2^{171642276062420} is an apocalyptic number.

171642276062420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171642276062420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192274291280232).

171642276062420 is an abundant number, since it is smaller than the sum of its proper divisors (212906306498044).

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

171642276062420 is a wasteful number, since it uses less digits than its factorization.

171642276062420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15162 (or 14729 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 171642276062420 in words is "one hundred seventy-one trillion, six hundred forty-two billion, two hundred seventy-six million, sixty-two thousand, four hundred twenty".