10990796569 has 9 divisors (see below), whose sum is σ = 11269810461. Its totient is φ = 10718534880.

The previous prime is 10990796539. The next prime is 10990796591. The reversal of 10990796569 is 96569709901.

The square root of 10990796569 is 104837.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3869462025 + 7121334544 = 62205^2 + 84388^2 .

It is not a de Polignac number, because 10990796569 - 2¹⁵ = 10990763801 is a prime.

It is a super-2 number, since 2×10990796569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10990796519) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4297039 + ... + 4299595.

Almost surely, 2^10990796569 is an apocalyptic number.

10990796569 is the 104837-th square number.

10990796569 is the 52419-th centered octagonal number.

It is an amenable number.

10990796569 is a deficient number, since it is larger than the sum of its proper divisors (279013892).

10990796569 is an frugal number, since it uses more digits than its factorization.

10990796569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 61.

The spelling of 10990796569 in words is "ten billion, nine hundred ninety million, seven hundred ninety-six thousand, five hundred sixty-nine".