2010996561 has 16 divisors (see below), whose sum is σ = 3170044800. Its totient is φ = 1109515008.

The previous prime is 2010996553. The next prime is 2010996569. The reversal of 2010996561 is 1656990102.

It is an interprime number because it is at equal distance from previous prime (2010996553) and next prime (2010996569).

It is not a de Polignac number, because 2010996561 - 2³ = 2010996553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2010996569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650456 + ... + 1651673.

It is an arithmetic number, because the mean of its divisors is an integer number (198127800).

Almost surely, 2^2010996561 is an apocalyptic number.

2010996561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2010996561 is a deficient number, since it is larger than the sum of its proper divisors (1159048239).

2010996561 is a wasteful number, since it uses less digits than its factorization.

2010996561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302168.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 2010996561 is about 44844.1363056532. The cubic root of 2010996561 is about 1262.2259638012.

The spelling of 2010996561 in words is "two billion, ten million, nine hundred ninety-six thousand, five hundred sixty-one".