11451661112552 has 16 divisors (see below), whose sum is σ = 21489307224000. Its totient is φ = 5721179186160.

The previous prime is 11451661112501. The next prime is 11451661112569. The reversal of 11451661112552 is 25521116615411.

It is a super-2 number, since 2×11451661112552² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 581410802 + ... + 581430497.

It is an arithmetic number, because the mean of its divisors is an integer number (1343081701500).

Almost surely, 2^{11451661112552} is an apocalyptic number.

It is an amenable number.

11451661112552 is a deficient number, since it is larger than the sum of its proper divisors (10037646111448).

11451661112552 is a wasteful number, since it uses less digits than its factorization.

11451661112552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162842536 (or 1162842532 counting only the distinct ones).

The product of its digits is 72000, while the sum is 41.

Adding to 11451661112552 its reverse (25521116615411), we get a palindrome (36972777727963).

The spelling of 11451661112552 in words is "eleven trillion, four hundred fifty-one billion, six hundred sixty-one million, one hundred twelve thousand, five hundred fifty-two".