170004006640 has 80 divisors (see below), whose sum is σ = 426584446848. Its totient is φ = 62634958848.

The previous prime is 170004006637. The next prime is 170004006703. The reversal of 170004006640 is 46600400071.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 170004006599 and 170004006608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304992 + ... + 658048.

Almost surely, 2^170004006640 is an apocalyptic number.

170004006640 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 170004006640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213292223424).

170004006640 is an abundant number, since it is smaller than the sum of its proper divisors (256580440208).

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

170004006640 is a wasteful number, since it uses less digits than its factorization.

170004006640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353546 (or 353540 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 170004006640 in words is "one hundred seventy billion, four million, six thousand, six hundred forty".