10990601257 has 2 divisors, whose sum is σ = 10990601258. Its totient is φ = 10990601256.

The previous prime is 10990601239. The next prime is 10990601261. The reversal of 10990601257 is 75210609901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9106694041 + 1883907216 = 95429^2 + 43404^2 .

It is a cyclic number.

It is not a de Polignac number, because 10990601257 - 2¹⁵ = 10990568489 is a prime.

It is not a weakly prime, because it can be changed into another prime (10990601227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5495300628 + 5495300629.

It is an arithmetic number, because the mean of its divisors is an integer number (5495300629).

Almost surely, 2^10990601257 is an apocalyptic number.

It is an amenable number.

10990601257 is a deficient number, since it is larger than the sum of its proper divisors (1).

10990601257 is an equidigital number, since it uses as much as digits as its factorization.

10990601257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 40.

The spelling of 10990601257 in words is "ten billion, nine hundred ninety million, six hundred one thousand, two hundred fifty-seven".