11451314561512 has 64 divisors (see below), whose sum is σ = 24821363589120. Its totient is φ = 4851337917888.

The previous prime is 11451314561507. The next prime is 11451314561563. The reversal of 11451314561512 is 21516541315411.

It is a super-2 number, since 2×11451314561512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710473 + ... + 4838119.

It is an arithmetic number, because the mean of its divisors is an integer number (387833806080).

Almost surely, 2^{11451314561512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11451314561512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12410681794560).

11451314561512 is an abundant number, since it is smaller than the sum of its proper divisors (13370049027608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11451314561512 is a wasteful number, since it uses less digits than its factorization.

11451314561512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128230 (or 4128226 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

Adding to 11451314561512 its reverse (21516541315411), we get a palindrome (32967855876923).

The spelling of 11451314561512 in words is "eleven trillion, four hundred fifty-one billion, three hundred fourteen million, five hundred sixty-one thousand, five hundred twelve".