2091596905 has 16 divisors (see below), whose sum is σ = 2558304000. Its totient is φ = 1641149440.

The previous prime is 2091596831. The next prime is 2091596911. The reversal of 2091596905 is 5096951902.

It is not a de Polignac number, because 2091596905 - 2⁹ = 2091596393 is a prime.

It is a super-2 number, since 2×2091596905² = 8749555226011158050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124560 + ... + 140350.

It is an arithmetic number, because the mean of its divisors is an integer number (159894000).

Almost surely, 2^2091596905 is an apocalyptic number.

It is an amenable number.

2091596905 is a deficient number, since it is larger than the sum of its proper divisors (466707095).

2091596905 is a wasteful number, since it uses less digits than its factorization.

2091596905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16304.

The product of its (nonzero) digits is 218700, while the sum is 46.

The square root of 2091596905 is about 45733.9797634101. The cubic root of 2091596905 is about 1278.8688136496.

The spelling of 2091596905 in words is "two billion, ninety-one million, five hundred ninety-six thousand, nine hundred five".