2633043661 has 8 divisors (see below), whose sum is σ = 2724423480. Its totient is φ = 2541702912.

The previous prime is 2633043659. The next prime is 2633043667. The reversal of 2633043661 is 1663403362.

It can be written as a sum of positive squares in 4 ways, for example, as 1210622436 + 1422421225 = 34794^2 + 37715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2633043661 - 2¹ = 2633043659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2633043667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216601 + ... + 228433.

It is an arithmetic number, because the mean of its divisors is an integer number (340552935).

Almost surely, 2^2633043661 is an apocalyptic number.

It is an amenable number.

2633043661 is a deficient number, since it is larger than the sum of its proper divisors (91379819).

2633043661 is a wasteful number, since it uses less digits than its factorization.

2633043661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19535.

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 2633043661 is about 51313.1918808409. The cubic root of 2633043661 is about 1380.8696578521.

The spelling of 2633043661 in words is "two billion, six hundred thirty-three million, forty-three thousand, six hundred sixty-one".