2091699455 has 16 divisors (see below), whose sum is σ = 2685468000. Its totient is φ = 1559295360.

The previous prime is 2091699437. The next prime is 2091699473. The reversal of 2091699455 is 5549961902.

It is an interprime number because it is at equal distance from previous prime (2091699437) and next prime (2091699473).

It is not a de Polignac number, because 2091699455 - 2⁶ = 2091699391 is a prime.

It is a super-2 number, since 2×2091699455² = 8750413220094594050, which contains 22 as substring.

It is a congruent number.

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, 174680 + ... + 186269.

It is an arithmetic number, because the mean of its divisors is an integer number (167841750).

Almost surely, 2^2091699455 is an apocalyptic number.

2091699455 is a deficient number, since it is larger than the sum of its proper divisors (593768545).

2091699455 is a wasteful number, since it uses less digits than its factorization.

2091699455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361034.

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 2091699455 is about 45735.1009072900. The cubic root of 2091699455 is about 1278.8897140843.

The spelling of 2091699455 in words is "two billion, ninety-one million, six hundred ninety-nine thousand, four hundred fifty-five".