11140997644 has 24 divisors (see below), whose sum is σ = 22284700928. Its totient is φ = 4774133520.

The previous prime is 11140997639. The next prime is 11140997653. The reversal of 11140997644 is 44679904111.

It is a super-2 number, since 2×11140997644² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11140997594 and 11140997603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275977 + ... + 313759.

Almost surely, 2^11140997644 is an apocalyptic number.

11140997644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11140997644 is an abundant number, since it is smaller than the sum of its proper divisors (11143703284).

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

11140997644 is a wasteful number, since it uses less digits than its factorization.

11140997644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48325 (or 48323 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 11140997644 in words is "eleven billion, one hundred forty million, nine hundred ninety-seven thousand, six hundred forty-four".