10997964444 has 12 divisors (see below), whose sum is σ = 25661917064. Its totient is φ = 3665988144.

The previous prime is 10997964433. The next prime is 10997964449. The reversal of 10997964444 is 44446979901.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×10997964444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10997964449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458248507 + ... + 458248530.

Almost surely, 2^10997964444 is an apocalyptic number.

It is an amenable number.

10997964444 is an abundant number, since it is smaller than the sum of its proper divisors (14663952620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10997964444 is a wasteful number, since it uses less digits than its factorization.

10997964444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916497044 (or 916497042 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 10997964444 in words is "ten billion, nine hundred ninety-seven million, nine hundred sixty-four thousand, four hundred forty-four".