11142445646 has 4 divisors (see below), whose sum is σ = 16713668472. Its totient is φ = 5571222822.

The previous prime is 11142445637. The next prime is 11142445651. The reversal of 11142445646 is 64654424111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785611410 + ... + 2785611413.

It is an arithmetic number, because the mean of its divisors is an integer number (4178417118).

Almost surely, 2^11142445646 is an apocalyptic number.

11142445646 is a deficient number, since it is larger than the sum of its proper divisors (5571222826).

11142445646 is an equidigital number, since it uses as much as digits as its factorization.

11142445646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571222825.

The product of its digits is 92160, while the sum is 38.

Adding to 11142445646 its reverse (64654424111), we get a palindrome (75796869757).

The spelling of 11142445646 in words is "eleven billion, one hundred forty-two million, four hundred forty-five thousand, six hundred forty-six".