13551444012 has 24 divisors (see below), whose sum is σ = 32292804096. Its totient is φ = 4421038288.

The previous prime is 13551444001. The next prime is 13551444029. The reversal of 13551444012 is 21044415531.

It is a super-2 number, since 2×13551444012² (a number of 21 digits) contains 22 as substring.

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, 12013128 + ... + 12014255.

It is an arithmetic number, because the mean of its divisors is an integer number (1345533504).

Almost surely, 2^13551444012 is an apocalyptic number.

13551444012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13551444012 is an abundant number, since it is smaller than the sum of its proper divisors (18741360084).

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

13551444012 is a wasteful number, since it uses less digits than its factorization.

13551444012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24027437 (or 24027435 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 13551444012 its reverse (21044415531), we get a palindrome (34595859543).

The spelling of 13551444012 in words is "thirteen billion, five hundred fifty-one million, four hundred forty-four thousand, twelve".