11451123602645 has 8 divisors (see below), whose sum is σ = 13741389447000. Its totient is φ = 9160871466240.

The previous prime is 11451123602599. The next prime is 11451123602747. The reversal of 11451123602645 is 54620632115411.

It can be written as a sum of positive squares in 4 ways, for example, as 946530518404 + 10504593084241 = 972898^2 + 3241079^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-11451123602645 is a prime.

It is a super-2 number, since 2×11451123602645² (a number of 27 digits) contains 22 as substring.

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, 1489616 + ... + 5012105.

It is an arithmetic number, because the mean of its divisors is an integer number (1717673680875).

Almost surely, 2^{11451123602645} is an apocalyptic number.

It is an amenable number.

11451123602645 is a deficient number, since it is larger than the sum of its proper divisors (2290265844355).

11451123602645 is an equidigital number, since it uses as much as digits as its factorization.

11451123602645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853975.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 11451123602645 in words is "eleven trillion, four hundred fifty-one billion, one hundred twenty-three million, six hundred two thousand, six hundred forty-five".