10990843853501 has 2 divisors, whose sum is σ = 10990843853502. Its totient is φ = 10990843853500.

The previous prime is 10990843853467. The next prime is 10990843853513. The reversal of 10990843853501 is 10535834809901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10400560500100 + 590283353401 = 3224990^2 + 768299^2 .

It is a cyclic number.

It is not a de Polignac number, because 10990843853501 - 2¹⁰ = 10990843852477 is a prime.

It is a super-2 number, since 2×10990843853501² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10990843853581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5495421926750 + 5495421926751.

It is an arithmetic number, because the mean of its divisors is an integer number (5495421926751).

Almost surely, 2^{10990843853501} is an apocalyptic number.

It is an amenable number.

10990843853501 is a deficient number, since it is larger than the sum of its proper divisors (1).

10990843853501 is an equidigital number, since it uses as much as digits as its factorization.

10990843853501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The spelling of 10990843853501 in words is "ten trillion, nine hundred ninety billion, eight hundred forty-three million, eight hundred fifty-three thousand, five hundred one".