13501166412 has 24 divisors (see below), whose sum is σ = 31545371200. Its totient is φ = 4494296016.

The previous prime is 13501166389. The next prime is 13501166423. The reversal of 13501166412 is 21466110531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13501166412.

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, 752362 + ... + 770097.

Almost surely, 2^13501166412 is an apocalyptic number.

13501166412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13501166412 is an abundant number, since it is smaller than the sum of its proper divisors (18044204788).

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

13501166412 is a wasteful number, since it uses less digits than its factorization.

13501166412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523205 (or 1523203 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 13501166412 its reverse (21466110531), we get a palindrome (34967276943).

The spelling of 13501166412 in words is "thirteen billion, five hundred one million, one hundred sixty-six thousand, four hundred twelve".