2003520351667 has 2 divisors, whose sum is σ = 2003520351668. Its totient is φ = 2003520351666.

The previous prime is 2003520351647. The next prime is 2003520351671. The reversal of 2003520351667 is 7661530253002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2003520351667 - 2²³ = 2003511963059 is a prime.

It is not a weakly prime, because it can be changed into another prime (2003520351647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001760175833 + 1001760175834.

It is an arithmetic number, because the mean of its divisors is an integer number (1001760175834).

Almost surely, 2^{2003520351667} is an apocalyptic number.

2003520351667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003520351667 is an equidigital number, since it uses as much as digits as its factorization.

2003520351667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 2003520351667 in words is "two trillion, three billion, five hundred twenty million, three hundred fifty-one thousand, six hundred sixty-seven".