170849063920 has 40 divisors (see below), whose sum is σ = 397479157920. Its totient is φ = 68295740160.

The previous prime is 170849063911. The next prime is 170849063921. The reversal of 170849063920 is 29360948071.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170849063921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560211 + ... + 809650.

It is an arithmetic number, because the mean of its divisors is an integer number (9936978948).

Almost surely, 2^170849063920 is an apocalyptic number.

170849063920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

170849063920 is an abundant number, since it is smaller than the sum of its proper divisors (226630094000).

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

170849063920 is a wasteful number, since it uses less digits than its factorization.

170849063920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371433 (or 1371427 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 170849063920 in words is "one hundred seventy billion, eight hundred forty-nine million, sixty-three thousand, nine hundred twenty".