2003173866960 has 640 divisors, whose sum is σ = 7676920074240. Its totient is φ = 421684150272.

The previous prime is 2003173866959. The next prime is 2003173866983. The reversal of 2003173866960 is 696683713002.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 382501462 + ... + 382506698.

It is an arithmetic number, because the mean of its divisors is an integer number (11995187616).

Almost surely, 2^{2003173866960} is an apocalyptic number.

2003173866960 is a gapful number since it is divisible by the number (20) 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 2003173866960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3838460037120).

2003173866960 is an abundant number, since it is smaller than the sum of its proper divisors (5673746207280).

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

2003173866960 is a wasteful number, since it uses less digits than its factorization.

2003173866960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563 (or 5557 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 2003173866960 in words is "two trillion, three billion, one hundred seventy-three million, eight hundred sixty-six thousand, nine hundred sixty".