13145454616 has 96 divisors (see below), whose sum is σ = 29435816880. Its totient is φ = 5485536000.

The previous prime is 13145454611. The next prime is 13145454617. The reversal of 13145454616 is 61645454131.

It is a super-2 number, since 2×13145454616² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145454611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2412391 + ... + 2417833.

Almost surely, 2^13145454616 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 13145454616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14717908440).

13145454616 is an abundant number, since it is smaller than the sum of its proper divisors (16290362264).

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

13145454616 is a wasteful number, since it uses less digits than its factorization.

13145454616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625 (or 5614 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The spelling of 13145454616 in words is "thirteen billion, one hundred forty-five million, four hundred fifty-four thousand, six hundred sixteen".