11023462640 has 20 divisors (see below), whose sum is σ = 25629550824. Its totient is φ = 4409385024.

The previous prime is 11023462621. The next prime is 11023462657. The reversal of 11023462640 is 4626432011.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68896562 + ... + 68896721.

Almost surely, 2^11023462640 is an apocalyptic number.

11023462640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11023462640 is an abundant number, since it is smaller than the sum of its proper divisors (14606088184).

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

11023462640 is a wasteful number, since it uses less digits than its factorization.

11023462640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137793296 (or 137793290 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 11023462640 its reverse (4626432011), we get a palindrome (15649894651).

The spelling of 11023462640 in words is "eleven billion, twenty-three million, four hundred sixty-two thousand, six hundred forty".