11142445645 has 8 divisors (see below), whose sum is σ = 13372078104. Its totient is φ = 8913194304.

The previous prime is 11142445637. The next prime is 11142445651. The reversal of 11142445645 is 54654424111.

It can be written as a sum of positive squares in 4 ways, for example, as 3716487369 + 7425958276 = 60963^2 + 86174^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11142445645 - 2³ = 11142445637 is a prime.

It is a super-3 number, since 3×11142445645³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26434 + ... + 151603.

It is an arithmetic number, because the mean of its divisors is an integer number (1671509763).

Almost surely, 2^11142445645 is an apocalyptic number.

It is an amenable number.

11142445645 is a deficient number, since it is larger than the sum of its proper divisors (2229632459).

11142445645 is a wasteful number, since it uses less digits than its factorization.

11142445645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190559.

The product of its digits is 76800, while the sum is 37.

Adding to 11142445645 its reverse (54654424111), we get a palindrome (65796869756).

The spelling of 11142445645 in words is "eleven billion, one hundred forty-two million, four hundred forty-five thousand, six hundred forty-five".