2003223615660 has 36 divisors (see below), whose sum is σ = 6076444968048. Its totient is φ = 534192964128.

The previous prime is 2003223615611. The next prime is 2003223615671. The reversal of 2003223615660 is 665163223002.

2003223615660 is a `hidden beast` number, since 2 + 0 + 0 + 32 + 2 + 3 + 61 + 566 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5564509864 + ... + 5564510223.

Almost surely, 2^{2003223615660} is an apocalyptic number.

2003223615660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003223615660 is an abundant number, since it is smaller than the sum of its proper divisors (4073221352388).

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

2003223615660 is a wasteful number, since it uses less digits than its factorization.

2003223615660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11129020102 (or 11129020097 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 2003223615660 its reverse (665163223002), we get a palindrome (2668386838662).

The spelling of 2003223615660 in words is "two trillion, three billion, two hundred twenty-three million, six hundred fifteen thousand, six hundred sixty".