44109660557 has 2 divisors, whose sum is σ = 44109660558. Its totient is φ = 44109660556.

The previous prime is 44109660509. The next prime is 44109660571. The reversal of 44109660557 is 75506690144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30732193636 + 13377466921 = 175306^2 + 115661^2 .

It is a cyclic number.

It is not a de Polignac number, because 44109660557 - 2²² = 44105466253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44109660857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22054830278 + 22054830279.

It is an arithmetic number, because the mean of its divisors is an integer number (22054830279).

Almost surely, 2^44109660557 is an apocalyptic number.

It is an amenable number.

44109660557 is a deficient number, since it is larger than the sum of its proper divisors (1).

44109660557 is an equidigital number, since it uses as much as digits as its factorization.

44109660557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 44109660557 in words is "forty-four billion, one hundred nine million, six hundred sixty thousand, five hundred fifty-seven".