2009459916555 has 32 divisors (see below), whose sum is σ = 3957090299904. Its totient is φ = 847947920256.

The previous prime is 2009459916553. The next prime is 2009459916559. The reversal of 2009459916555 is 5556199549002.

It is not a de Polignac number, because 2009459916555 - 2¹ = 2009459916553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2009459916553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 736064539 + ... + 736067268.

It is an arithmetic number, because the mean of its divisors is an integer number (123659071872).

Almost surely, 2^{2009459916555} is an apocalyptic number.

2009459916555 is a deficient number, since it is larger than the sum of its proper divisors (1947630383349).

2009459916555 is a wasteful number, since it uses less digits than its factorization.

2009459916555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472131835.

The product of its (nonzero) digits is 21870000, while the sum is 60.

The spelling of 2009459916555 in words is "two trillion, nine billion, four hundred fifty-nine million, nine hundred sixteen thousand, five hundred fifty-five".