2003400052168 has 16 divisors (see below), whose sum is σ = 3756446173980. Its totient is φ = 1001681072448.

The previous prime is 2003400052117. The next prime is 2003400052169. The reversal of 2003400052168 is 8612500043002.

It can be written as a sum of positive squares in 2 ways, for example, as 1959893601444 + 43506450724 = 1399962^2 + 208582^2 .

It is a super-2 number, since 2×2003400052168² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2003400052169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914855 + ... + 2770102.

Almost surely, 2^{2003400052168} is an apocalyptic number.

It is an amenable number.

2003400052168 is a deficient number, since it is larger than the sum of its proper divisors (1753046121812).

2003400052168 is a wasteful number, since it uses less digits than its factorization.

2003400052168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738416 (or 4738412 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 2003400052168 in words is "two trillion, three billion, four hundred million, fifty-two thousand, one hundred sixty-eight".