2661004433 has 2 divisors, whose sum is σ = 2661004434. Its totient is φ = 2661004432.

The previous prime is 2661004429. The next prime is 2661004459. The reversal of 2661004433 is 3344001662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1449477184 + 1211527249 = 38072^2 + 34807^2 .

It is a cyclic number.

It is not a de Polignac number, because 2661004433 - 2² = 2661004429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2661004396 and 2661004405.

It is not a weakly prime, because it can be changed into another prime (2661054433) 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 as a sum of consecutive naturals, namely, 1330502216 + 1330502217.

It is an arithmetic number, because the mean of its divisors is an integer number (1330502217).

Almost surely, 2^2661004433 is an apocalyptic number.

It is an amenable number.

2661004433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661004433 is an equidigital number, since it uses as much as digits as its factorization.

2661004433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 2661004433 is about 51584.9244741136. The cubic root of 2661004433 is about 1385.7403598123.

The spelling of 2661004433 in words is "two billion, six hundred sixty-one million, four thousand, four hundred thirty-three".