15445361136 has 120 divisors (see below), whose sum is σ = 43401567360. Its totient is φ = 4719876480.

The previous prime is 15445361131. The next prime is 15445361137. The reversal of 15445361136 is 63116354451.

It is a junction number, because it is equal to n+sod(n) for n = 15445361094 and 15445361103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15445361131) 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, 867621 + ... + 885243.

It is an arithmetic number, because the mean of its divisors is an integer number (361679728).

Almost surely, 2^15445361136 is an apocalyptic number.

15445361136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15445361136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21700783680).

15445361136 is an abundant number, since it is smaller than the sum of its proper divisors (27956206224).

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

15445361136 is a wasteful number, since it uses less digits than its factorization.

15445361136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17715 (or 17678 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The spelling of 15445361136 in words is "fifteen billion, four hundred forty-five million, three hundred sixty-one thousand, one hundred thirty-six".