11451661103501 has 8 divisors (see below), whose sum is σ = 11456926921440. Its totient is φ = 11446395606352.

The previous prime is 11451661103489. The next prime is 11451661103521. The reversal of 11451661103501 is 10530116615411.

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 11451661103501 - 2²⁶ = 11451593994637 is a prime.

It is a super-2 number, since 2×11451661103501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451661103521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98865446 + ... + 98981208.

It is an arithmetic number, because the mean of its divisors is an integer number (1432115865180).

Almost surely, 2^{11451661103501} is an apocalyptic number.

It is an amenable number.

11451661103501 is a deficient number, since it is larger than the sum of its proper divisors (5265817939).

11451661103501 is a wasteful number, since it uses less digits than its factorization.

11451661103501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160395.

The product of its (nonzero) digits is 10800, while the sum is 35.

Adding to 11451661103501 its reverse (10530116615411), we get a palindrome (21981777718912).

The spelling of 11451661103501 in words is "eleven trillion, four hundred fifty-one billion, six hundred sixty-one million, one hundred three thousand, five hundred one".