44125696661 has 2 divisors, whose sum is σ = 44125696662. Its totient is φ = 44125696660.

The previous prime is 44125696619. The next prime is 44125696751. The reversal of 44125696661 is 16669652144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41176120561 + 2949576100 = 202919^2 + 54310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44125696661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44125696561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22062848330 + 22062848331.

It is an arithmetic number, because the mean of its divisors is an integer number (22062848331).

Almost surely, 2^44125696661 is an apocalyptic number.

It is an amenable number.

44125696661 is a deficient number, since it is larger than the sum of its proper divisors (1).

44125696661 is an equidigital number, since it uses as much as digits as its factorization.

44125696661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 50.

The spelling of 44125696661 in words is "forty-four billion, one hundred twenty-five million, six hundred ninety-six thousand, six hundred sixty-one".