170491996164 has 192 divisors, whose sum is σ = 482585241600. Its totient is φ = 45762941952.

The previous prime is 170491996159. The next prime is 170491996189. The reversal of 170491996164 is 461699194071.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181954704 + ... + 181955640.

It is an arithmetic number, because the mean of its divisors is an integer number (2513464800).

Almost surely, 2^170491996164 is an apocalyptic number.

170491996164 is a gapful number since it is divisible by the number (14) 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 170491996164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241292620800).

170491996164 is an abundant number, since it is smaller than the sum of its proper divisors (312093245436).

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

170491996164 is a wasteful number, since it uses less digits than its factorization.

170491996164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1800 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 170491996164 in words is "one hundred seventy billion, four hundred ninety-one million, nine hundred ninety-six thousand, one hundred sixty-four".