166670203536 has 120 divisors (see below), whose sum is σ = 474580473120. Its totient is φ = 54588672000.

The previous prime is 166670203517. The next prime is 166670203543. The reversal of 166670203536 is 635302076661.

It is a junction number, because it is equal to n+sod(n) for n = 166670203491 and 166670203500.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25833111 + ... + 25839561.

It is an arithmetic number, because the mean of its divisors is an integer number (3954837276).

Almost surely, 2^166670203536 is an apocalyptic number.

166670203536 is a gapful number since it is divisible by the number (16) 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 166670203536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237290236560).

166670203536 is an abundant number, since it is smaller than the sum of its proper divisors (307910269584).

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

166670203536 is a wasteful number, since it uses less digits than its factorization.

166670203536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9565 (or 9556 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 166670203536 in words is "one hundred sixty-six billion, six hundred seventy million, two hundred three thousand, five hundred thirty-six".